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TABLE OF CONTENTS
Network and Internet Service News
Hotlines and Operation Schedule
The Government of the Hong Kong Special Administrative Region has issued "The Intellectual Property (Miscellaneous Amendment) Ordinance 2000" which contains an amendment to the Copyright Ordinance and the Prevention of Copyright Piracy Ordinance. This amended law is necessary because the Government of Hong Kong is intent on cleaning up the act of using copyright infringing products in business which has become a serious problem in Hong Kong. This amended law will become effective on 1 April 2001.
To assist University departments to comply with the amended Ordinance, Computer Centre has circulated a letter to all department heads and an email notice to all staff and students about guidelines on administering their software licences in accordance with legal requirements.
The government's website for publicising this amendment is at http://www.info.gov.hk/cib/ehtml/news.html
Be sure to browse the FAQ's (Frequently Asked Questions) which contain many good examples and "what...if" scenarios for different kinds of circumstances to illustrate clearly what would constitute an offense after the amendment takes effect especially in ambiguous situations which were not spelt out in the law before the amendment.
For a quick reference on using properly licensed computer software, the following guidelines have been copied from the government's website:
Let us start to comply with this amended law by reviewing the software in your computer at work. Get rid of any software without a license before April 1, 2001. If you are not sure whether a certain software has a valid license, then ask your network administrator or your computer vendor.
- Generally do not buy from unlicensed hawkers or temporary premises. Distributors of copyright works do not normally authorize such places to sell their products.
- By all means seek the best price for the product; but if the price is no more than a fraction of the price for which an authorized version of the product is normally sold, this is an indication that the copy may be pirated. If in doubt, approach the copyright owner for additional information.
- If you are purchasing computer software for your business, get a set for each computer that will run the software, or purchase an appropriate network software license.
- Carefully study the licensing conditions to ensure that the software installed in your computers is properly licensed for use in your business.
- Conduct periodic software auditing to ensure that only properly licensed computer software has been installed in any computer in your office.
- Obtain licences from the copyright owners if you need to make copies of copyright works for your business.
- Ensure that all employees in your office are fully aware of the company's policy and practice on the use of computer software and copying of copyright works.
- Do not play music or video for your business using pirated CDs, DVDs, VCDs or videotapes.
- Do not use photocopies of books, magazines or newspapers for your business without proper licence from the relevant copyright owners.
- If you are an employee, do not, in carrying out your business duties, use goods or products that you know or have reason to believe are infringing copies of copyright works, e.g. pirated computer software.
- Read the terms of the licensing agreements carefully to understand your rights and obligations.
This material is taken from "Intellectual Property (Miscellaneous Amendments) Ordinance 2000 Frequently Asked Questions" 2001 and is used with the permission of the Government of the Hong Kong Special Administrative Region.
Tel: 2859 8934
About the respondentsAn academic computing services survey was conducted at the end of last year from December 22, 2000 to January 31, 2001 to assess the requirements and satisfaction levels of the computer services provided by the HKU Computer Centre . This is a report of the results and findings of the user survey.
A web form of this survey was launched on our intranet so that this survey was accessible from the campus network, PC laboratories, ACEnet, Hallnet, from homes via the PPP connection, and from external networks via the VPN service. Users enter their responses in the form, and the data was captured in an Oracle database. The data was then analysed with the SAS package (Statistical Analysis System) available on the HKUSUA server. The results of the analysis are then presented in graphical format using the Excel program.
The survey was participated by 727 respondents with 194 staff and 533 students. By ranking the number of respondents by faculty/departments, 60% of the respondents come from the faculties of Arts, Science, Medicine and Engineering. Table 1 shows the ranking of respondents by faculty/department and Table 2 shows the distribution of staff and students.
|Participating Faculties||# of Respondents||% of Total|
|Faculty of Arts||134||18.4%|
|Faculty of Science||118||16.2%|
|Faculty of Medicine||103||14.2%|
|Faculty of Engineering||83||11.4%|
|Non-Faculty Academic Units||68||9.4%|
|Faculty of Social Sciences||61||8.4%|
|Faculty of Education||32||4.4%|
|Faculty of Business and Economics||28||3.9%|
|Libraries, Service depts, residence halls||23||3.2%|
|Faculty of Architecture||20||2.8%|
|Faculty of Law||15||2.1%|
|Faculty of Dentistry||13||1.8%|
|Staff/student status||# of Respondents||% of Total
|Staff (teaching and non-teaching)||194||26.7%|
|Students (undergraduates and post-graduates)||533||73.3%|
Users were asked to rate the following services on a scale of 1 to 5 with:
Importance (1= not at all important, 5= most important, 0= not applicable)
Satisfaction (1= not at all satisfied, 5= most satisfied, 0= not applicable)
For importance and satisfaction of each of the above services, counts of people who responded with ratings of 3-5 were added together. This count was then expressed as a percentage of the total respondents (727). For example, 661 responded with 3-5 to the importance and 631 to the satisfaction of the e-mail service, and so, for the e-mail service, the important is 90.9% and satisfaction is 86.8%.
Table 3 shows the combined analysis of staff and students where the computer services are listed in descending order of importance.
|E-mail service (Eudora, Pine... etc.)||90.9%||86.8%|
|Connecting to the Internet from the campus||90.4%||81.8%|
|Connecting to the HKU network via PPP dial-up||86.1%||45.1%|
|User Support (Help Desk and other help services)||76.3%||64.4%|
|Connecting to the LAN file servers||59.3%||53.9%|
|Training courses for users||55.0%||42.5%|
|Using microcomputers in PC laboratories||49.4%||43.7%|
|Using the Unix host computers||41.3%||41.4%|
When the importance and satisfaction of staff and students were analysed separately, we see that the ranking is somewhat different between staff and students. The main difference is in the use of the PC laboratories which is important primarily to students. Table 4 shows the separate analysis of staff and student responses.
Computer Service Staff Responses Students Responses Importance Satisfaction Importance Satisfaction E-mail service 96% 92% 89% 85% Connecting to Internet from campus 88% 83% 91% 81% Connecting to the HKUPPP network 80% 48% 88% 44% User Support 81% 68% 74% 63% Connecting to the LAN file servers 62% 57% 58% 53% Training courses 63% 49% 52% 40% Using the PC laboratories 23% 19% 59% 53% Using the Unix host computers 37% 31% 43% 45%
The following questions were asked about the use of the email service. Results of the analysis of responses are presented in the figures below.
Interestingly, the use of email programs Eudora and Webmail differ significantly between staff and students as shown in Table 5. The use of other email programs are about the same.
|E-mail program used||Eudora||Webmail||Netscape/Outlook||Pine and others|
Users were asked how many hours per week do they use the various venues to access the HKU network and the Internet. In Table 6, column 1 lists the various networks, column 2 shows the percent of total respondents (727) who use that particular network, column 3 shows the overall mean hours/week of network usage, columns 4 and 5 show the mean hours/week of staff and students respectively. From this table, we can see that staff use the campus network more than students while students use the PPP network more than staff. Also, for ACEnet and especially the Hall network, students use them more than staff. For the VPN network, the use of it is about the same between staff and students
|Network Service||% Total Respondents (727)||Overall Mean||Staff Mean||Student Mean|
|HKU campus network||87%||12 hours/wk||21 hours/wk||8 hours/wk|
|HKU PPP network||83%||9 hours/wk||6 hours/wk||10 hours/wk|
|ACEnet||41%||5 hours/wk||3 hours/wk||6 hours/wk|
|Hall network||24%||22 hours/wk||4 hours/wk||27 hours/wk|
|HKU VPN network||20%||5 hours/wk||3 hours/wk||5 hours/wk|
For the dial-up service, the peak usage period generally occurs between 10:00 p.m. and 2:00 a.m. in the morning. During this period when all lines (over 800) are in full use, users may have to re-try a number of times before a connection can be made. Users are therefore asked how many times do they try before they get connected during peak hours. Figure 5 shows the overall responses while Table 7 shows the separate responses of staff and students, reflecting a congestion in the student lines.
|PPP tries for connection in peak hours||once||twice||3 times||4 times||5 times +|
Host computers generally refer to HKUSUA for student accounts and HKUCC for staff accounts. Users were asked what do they use their host computer account for. 56% of all respondents use their host account for e-mail. That is why the host computer is also referred to as the e-mail server. In the following table, users indicate that they use their host computer account primarily for e-mail, for storing data files and launching their personal homepage. A smaller proportion of users use their host computer accounts for running packaged or custom-developed programs.
|What do you use the host account for||# of Respondents||% of Total|
|Store data files||
|Run packaged programs||
|Run self developed programs||
Users were asked how many hours per week do they use their host computer, if they find the disk space allocation for their host account sufficient, and about the backup and restore service for their host accounts. Results of the analysis of host computer services are presented in the figures below.
This section assesses the users' satisfaction of the PC's in the laboratories. Students were asked many hours per week do they use the microcomputers in the PC laboratories, their satisfaction of the laser printing service in the PC laboratories. And if the users had joined our computer equipment maintenance service, how they would rate our maintenance service. (Please read about our technician service in another article). Results of analysis of the microcomputer laboratories are presented in the figures below.
In Figure 10, the rating of the printing service in the PC laboratories is done mostly by students as this question is responded by 70% of the students and only 19% of the staff.
In Figure 11, we see the rating of our PC maintenance service. Although this question was originally intended for users of our technicians' service for repairing the PC's in the staff's offices, many students used this opportunity to give us feedback on the PC maintenance service in the PC laboratories. This service is rated by 22% of the staff and 33% of students.
Table 9 shows the usage (hours per week) of the PC laboratories which are used predominantly by students.
|PC lab usage (hours/wk)||Never||< 2 hours||2-6 hours||6 hours +|
User support services are venues where users go for solutions of their computer problems, and user training courses organised by Computer Centre . In the following table, we see that there is a difference between staff and students in where they go for help. The Help Desk is the main source of help for both staff and students. However, staff tend to call the hot-line to make enquiries while students tend to visit the help desks located in the student laboratories. For other venues, the CCBox (help service via e-mail) is used more by staff than students while the FAQ's (frequently asked questions) available on the web are browsed more by students than by staff.
|User Support||Help Desk||CCBox||Call hot-line||see FAQ||hku.cc.forum|
The Help Desk and CC Box were assessed on the timeliness of response to users' enquiries, their ability to solve users' problems and our staff's attitude. Users were also asked about the usefulness and timeliness of the the Centre's newsletter, the Computer News. The training courses organised by the Centre were also assessed. Results of these user support services are presented in the figures below.
The next question is to assess the awareness or use of the Centre's newly developed services by our users. The new services include the WebCT for e-courses, the wireless LAN for networking, electronic signatures for signing in the university's electronic transactions, the use of the Internet2 research network and the video conference facility. As these are still emerging technologies, the uses for them are low. Below are their responses.
|New Technology||# of Respondents||% of Total|
|Internet2 Research Network||65||9%|
Mabel ChauThis web survey has proven to be a convenient way to conduct a user survey which is accessible to both staff and students of the University. The previous Computer Centre survey was conducted separately among staff and students. In the last survey, staff members were polled using paper survey forms and their responses were keyed in the computer by data entry clerks. In this survey, data was input directly into the computer by both staff and students, thereby saving much effort and paper. Although we would like to see more respondents in our surveys, this survey was responded by more users (727) than in the last couple of times (677).
Many users have responded freely to the open-ended questions where they were asked for suggestions for improvement for the various computer services. Click here for a list of users' suggestions on how to improve these computer services.
From the analysis of the categorial data and the written comments, we know that the needs of staff and students are different in some specific areas but similar in most areas. The greatest need in academic computing is still in the area of information services and email communications. The PPP dialup network is an important service to all and there is a need for improvement of this service for students. This means that we must focus our efforts on maintaining a fast and reliable network infrastructure and develop more convenient modes of access to the network.
In the area of user services, the first line for enquiries is still the Help Desk and the hot-line phone. More resources need to be put in the Help Desk during busy seasons (e.g. at the beginning of a new term). Computer training courses should be made more available to students. This means changing the present training schedules to suit the students. The FAQ's need to be updated more with timely and accurate information and its use promoted among staff users. The student laboratories need improvement in upgrading the PC's and providing a better laser printing service for the students.
We will continue our efforts in seeking additional support from the University to implement the highly demanded facility enhancements and service improvements which have major resource implications.
We thank all the respondents for taking the time to answer the questionnaire and giving us your feedback.
The HKU Certification Authority (CA) has been issuing digital certificates (HKU-Cert) to staff and students of this University since September 2000 for signing electronically in the HKU ESD System and for communicating with secure e-mail (i.e signing and encrypting e-mail). Computer Centre is pleased to announce the following enhancement of the HKU Cert:
HKU-Cert on Outlook Express 5.5When the HKU-Cert was first issued, only the Netscape v4.7x browsers were tested to be able to support the use of HKU-Cert for digital signatures on the HKU ESD System. (The HKU-Cert is in X.509 v.3 format with strong 1024-bit RSA keys. The X.509 v.3 format is the most commonly used format for digital certificates.)
Since then, the Microsoft Internet Explorer (IE) version 5.5 for web browsing has been released. As IE 5.5 is also widely used, we have been enhancing the HKU ESD System to ensure that the HKU-Cert can be used in IE 5.5.
The user can now run HKU ESD Applications, accessible from the HKU ESD System portal page, using either Netscape 4.7x or IE 5.5.
Issuance of HKU-Cert to non-HKU users (e.g. HKU collaborators)The Microsoft Outlook Express (OE) version 5.5 is also released with IE 5.5. The procedure for sending secure e-mail using HKU-Cert is now updated to include the procedure for OE 5.5 as well as Netscape 4.7x.
M. C. PongWhen the HKU-Cert was first issued, it was only issued to HKU members. Now if HKU members have to communicate in secure e-mail (i.e. encrypted and/or signed e-mail) with non-HKU users, say external collaborators, the HKU department head can apply for HKU-Cert on behalf of the collaborators. (Click here to download an application form.)
The Jockey Club Research and Information Centre for Landslide Prevention and Land Development, attached to our Department of Civil Engineering, is the first unit which has applied for HKU-Cert for collaborators working on the Electronic Mark Plant Query System (EMPQS) project. The EMPQS enables secure communication of underground plant information provided by utility companies to the information requestors. The efficiency and cost-effectiveness of secure electronic communication remarkably cut down the time and labour required to process the increasing number of requests for underground plant information for road excavation, thus facilitating underground plant installation, repair and maintenance.Any department interested in applying for HKU-Cert for collaborators or in implementing digital signature for any of the department's web-based applications can contact the undersigned.
Note: The HKU-Cert issued to a non-HKU user is only for communicating in secure e-mail, not for digital signatures in HKU ESD Applications.
What is EC-SignGateThe use of digital signatures eliminates the requirement of written signatures and the handling of paper forms, and thus increases the productivity of the parties involved from a user submitting a web-based form to the completion of its processing.
The following applications using HKU-Cert, the digital certificates issued by the HKU Certification Authority, have been put into service in 2000 as the first batch of ESD applications in the HKU Electronic Service Delivery (ESD) System:
Users will find more occasions for using their digital signatures. While Computer Centre is promoting the use of digital signatures in the University, the Department of Computer Science and Information Systems (CSIS) is developing a web-based application for automated computer account creation for her students. This is done by a CSIS web server which obtains the authentication of her students' digital signatures via an Electronic Contract Signing Gateway (EC-SignGate) service provided by Computer Centre . Since the students are authenticated, there is no need to manually check the students' identities and a computer program will create the accounts for the students automatically and instantaneously, resulting in productivity gain for all parties.
- On-line Application Form System for collecting application forms via the web
- Computer Centre Ordering System for ordering goods and services from Computer Centre
- Purchase of Laser Printing Units using credit card for printing in Computer Centre PC laboratories
The EC-SignGate service makes it easy for a department to develop digital signature applications, without the need to implement or install public key infrastructure (PKI) solutions on the department's web server.
The reason why digital signatures are not yet popular in today's world is that an organization or department must install the public key infrastructure (PKI) before its web server can run web-based applications which support digital signatures (Figure 1). It is not a trivial task to install the PKI to support digital signatures and their verification.
With the establishment of EC-SignGate at Computer Centre , other departments can now run web-based applications using digital signatures more easily (Figure 2).
and use EC-SignGate to support digital signature
An example application using the service of EC-SignGateThe steps of completing a transaction are:
A simple calling convention is employed between the department's application and the EC-SignGate service. If any department is interested in using digital signatures and EC-SignGate to facilitate their department's ESD applications, please contact the undersigned.
- The department's web-based application accepts the user's input from the user's browser.
- The department's application prepares an e-contract (a textual web page) to be signed by the user, and forwards it to EC-SignGate.
- EC-SignGate presents the e-contract with the digital signing facilities to the user's browser for the user to sign.
- The user signs the e-contract with his HKU-Cert private key and submits it.
- EC-SignGate verifies the digital signature of the e-contract and sends the verification result to the department's application.
- Based on the verification result, the department's application sends the final acknowledgment, either positive or negative, to the user.
M. C. PongThe web-based application being developed by the Department of Computer Science and Information Systems (CSIS) runs like this:
- A student accesses the web-based application homepage. (click to see image)
- The student continues to read more information about the application. (click to see image)
- The student sees the e-contract provided by CSIS, with the signing support by the EC-SignGate service provided by Computer Centre . (click to see image)
- The student signs by putting his HKU Smart Card or HKU-Cert CD-R containing his private key in place, and then typing his private-key password in a pop-up window. (click to see image)
- The student sees the final acknowledgement page by CSIS. (click to see image)
In summary, remember the following precaution against email virusesIn the last few months, there has been a big increase in HKU members being hit with a computer virus of some kind. These cases were reported to the Help Desk and the PC maintenance service. The Help Desk feels that the most important thing to do now is to raise and maintain the HKU members' awareness of e-mail viruses and what steps they can take to protect themselves against these viruses. For simplicity, computer viruses and worms will both be referred to as viruses.
Lately, the spread of e-mail viruses have been quite innocent and unintentional. The Help Desk received many reports from users that an email virus had been received from a certain sender, sometimes from someone they do not know at all. This is because some viruses automatically emails itself to everyone in a sender's address book.
The Help Desk then tries to stop the spreading of the email virus by identifying and contacting the virus sender as soon as possible. For staff users, they are contacted by telephone and asked to remove the virus from their PCs before connecting to the network again. For student users, their computer accounts are inactivated so that they will contact the Help Desk to find out why they cannot access their accounts. We find that most users are not aware when their PCs are infected with a computer virus and that they had been the instrument in spreading these email viruses around. Although many of them have installed the anti-virus software, they rarely perform a live update of their anti-virus software.
In a previous article from the Helpdesk in Computer News issue 85, the damages that a computer virus can do to your computer and the guidelines to protect your computer from being infected have been discussed.
Currently Computer Centre has a departmental license policy on Norton Anti-Virus Software for staff and faculty. For individuals, you can go to your local computer store to purchase the software.
This article intends to bring to the fore the importance of updating your virus definitions by performing the Live Update in the Norton Anti-Virus Software. It cannot be emphasized enough that you are not really protected against the latest viruses unless you have the latest virus definitions in your system, and it is always the newest virus that attacks you off guard. In order words, your Norton program will not recognise that a virus is a virus if it is not defined as a virus. There is a feature you can set in Norton Anti-Virus to schedule an update automatically.
Another important issue in using the Norton Anti-virus is to make sure your anti-virus program is "on". When it is on, the anti-virus program is protecting your system against all viruses defined in your virus definitions file. That is why the icon for Norton Anti-virus is a tilted yellow shield for protection (see figure above). If it is "off", there is a red cross over the yellow shield which means you are now unprotected. Again, even if the protection is turned "on", your protection is not real if your virus definitions are not up-to-date!
- If you do not know the sender of an email attachment, do not open the attachment.
- If you know the sender of an attachment, still confirm with the sender that he/she did send the attachment.
- Scan the email attachment before opening it. Only when the file is proven clean, then proceed to open it.
- Install an anti-virus program in your computer (e.g. Norton Anti-virus system). Update the virus definitions regularly and scan all email attachments before opening.
- Backup your system and data. Computer Centre performs regular backups of the LAN servers and host computers. That is why some systems are not available (due to backing up) in the early hours in the morning. To restore a host file or email from the backup service, go to Room 108 in the Run Run Shaw Building and fill in a request form. PC users are responsible for backing up their own files.
- If you are hit by a computer virus, and you do not know what else to do, call the Help Desk for assistance (tel. 2859-2480) or log a call for our technician service at http://www.its.hku.hk/services/maintain.htm
In a previous issue of the Computer News, we had informed readers about the implementation of the Gigabit Ethernet (G.E.) Campus Network backbone to augment the existing ATM backbone network. To recap, two high-density G.E. backbone switches with routing capability were installed last October to serve as the new G.E. backbone. One of the two switches is installed in Computer Centre and the other is in the Kadoorie Biological Sciences Building. These two systems are running in parallel and are each other's backup system in case one of them fails. Each G.E. backbone switch has an ATM OC-12 (622Mbps) link to connect to the existing ATM backbone network.
During the last few months, Computer Centre has been working on this network upgrade project. Currently, network traffic on the old backbone routers had been re-routed to the new backbone to off-load the old backbone routers. After all the new fiber connections between buildings in the main campus were ready at the end of January, we proceeded to install high-density Fast Ethernet (F.E.) switches into various buildings in the main campus. The F.E. switch is to serve as a building concentration switch for that building, and each F.E. switch has dual G.E. fiber uplinks to connect to the G.E. backbone. The F.E. switches were installed in the following buildings:
- Library Building (New Wing and Old Wing)
- Meng Wah Complex (Block A and B)
- Eliot Hall
- Kadoorie Biological Sciences Building
- Main Building
- KK Leung Building
- Knowles Building
- Haking Wong Building
- Chow Yei Ching Building
- Graduate House
- Chong Yuet Ming Building (Physics Block and Chemistry Block)
- Run Run Shaw Building
- Runme Shaw Building
All the hardware configuration and installation work of this project is completed. The next phase of this project is to connect the network segments in each of the buildings to the newly installed F.E. switch. We will further inform readers about the progress in later updates.
Ronald LeungAsynchronous Transfer Mode
ATM (asynchronous transfer mode) is a dedicated-connection switching technology that organizes digital data into 53-byte cell units and transmits them over a physical medium using digital signal technology. Individually, a cell is processed asynchronous relative to other related cells and is queued before being multiplexed over the transmission path. Multiplexing is sending multiple signals of information on a carrier at the same time in the form of a single, complex signal and then recovering the separate signals at the receiving end. Our ATM backbone has a transmission speed of 622 Mbps.
Gigabit Ethernet (GE) is a local area network transmission standard that provides a data rate of 1 billion bits per second (one gigabit). Existing Ethernet LANs with 10 and 100 Mbps cards can feed into a Gigabit Ethernet backbone.
Fast Ethernet is a local area network transmission standard that provides a data rate of 100 megabits per second (100BASE-T). Workstations with existing 10 megabit per second (10BASE-T) ethernet cards can be connected to a Fast Ethernet network.
Ethernet is the most widely-installed local area network (LAN) technology. A local area network (LAN) is a group of computers that share a common communications line and the resources of a single processor or server within a small geographic area (e.g. within an office building). An Ethernet LAN typically uses coaxial cable or special grades of twisted pair wires providing transmission speeds up to 10 Mbps (10BASE-T).
We are pleased to announce that a new version of the HKU Network Access Package (HKUNAP v 4.0) for Windows 95/98/Me/2000/Macintosh is now available from Computer Centre . The HKUNAP software provides programs and documentation for connecting your PC to the HKU network and the Internet through telephone modems, the hall network and the Access Everywhere network (ACEnet). The following software applications are included in HKUNAP version 4.0 :
A Web browser software package for reading Web pages, e-mail and news, etc.
An e-mail program for sending and reading e-mail stored on a host computer.
An e-mail program for sending e-mail and downloading e-mail to PCs.
A telnet terminal program which can display Chinese characters
An FTP program for transferring files between host computers and PCs.
||For running HKU ESD applications|
The HKUNAP v4.0 package is available in CDROM format at the General Office of Computer Centre (Room 223 of Run Run Shaw Building) at a nominal cost of $50. Alternatively, users can download the package from our FTP server at http://ftp.hku.hk/pub/hkunap40.Before installing the package, it is important that you read the "Read me first" file included in the package for detailed installation procedures.
For further information or queries, please contact the undersigned.
Computer Centre is undertaking a network improvement project for the student residence halls at Sassoon Road. The main purpose is to alleviate the network traffic congestion problem which occurs during the peak hours at late night to early morning. Some additional fibre cables and network equipment have been installed for serving the student residential halls in that area, namely the Lee Hysan Hall, R.C. Lee Hall, Wei Lun Hall and the Madam S.H. Ho Residence for Medical Students.
Katherine KwokAfter the re-routing and network improvement work which was finished on 8th March 2001, the R. C. Lee Hall and Wei Lun Hall have their own subnet while Lee Hysan Hall and Madam S.H. Ho Residence Hall share one subnet. By dividing the halls into different subnets, the broadcast traffic cannot pass from one hall to another, therefore, the network traffic within each hall will be decongested significantly.
Should you have any questions relating to the network improvement work for the halls at Sassoon Road, please contact the undersigned.
KC ChangIn the Webster dictionary, "proxy" means "a person authorized to act for another". On the Internet, the proxy serves the following purposes:
The first HKU proxy was installed on the central Information Server (see CC News Oct-Dec 1995). Since that time, network usage has increased many fold and the proxy service had been very strained. In order to relieve the loading on the HKU web server, we have disabled the proxy service on www.hku.hk (hkusuc.hku.hk) so that it is no longer available. Users are advised to configure their web browsers with the following proxy settings:
- A proxy server acts as a gateway that separates an institution's network from the outside networks, and it can act as a firewall server that protects a private network from outside intrusion. For example, the HKU intranet is a private network, and it is not available to users of other networks. Access control to some restricted sites (e.g. the library electronic resources) can be easily achieved using a proxy server.
- A proxy also serves as cache server for storing webpages. If you request a webpage from an external site outside of HKU, the browser will first look for the page on the proxy server. If it finds the page, it returns it to the user without searching on the Internet. If the page is not found in the cache, the proxy server, acting as a client on behalf of the user, uses one of its own IP addresses to request the page from the server out on the Internet. When the page is returned, the proxy server relates it to the original request and forwards it on to the user. The caching of frequently accessed web pages shortens the response time. The use of proxy conserves the use of the Internet bandwidth as the bandwidth is shared amongst the eight tertiary institutions in Hong Kong.
The use of the automatic proxy is recommended as it allows our Centre's staff to suitably add/remove proxy servers to our network configuration without any user disruption. Users can go on using the proxy service without noticing any adverse effect from maintenance work done on any of our proxy servers. For details on the HKU proxy settings, please refer to Computer Centre's FAQ page on PPP.
- automatic proxy at URL: http://www.hku.hk/local/cc/proxy.pac (preferred set-up)
- manual proxy settings with server: proxy.hku.hk and port: 8282
When using the HKUPPP, ACEnet , Hallnet or VPN networks, you must configure the proxy server in your browser or you will not be able to access websites outside of HKU.
Please contact the undersigned if you have any enquiries about the HKU proxy service.
Vitus LamWe are delighted to inform you that a procedure for enabling security for the HKU Wireless LAN (WLAN) service is now available. This means that if you use the HKU Wireless LAN to connect to the network, you can now send encrypted messages or data without the fear of someone eavesdropping on your communications. Encryption or decryption is especially important in wireless communications. This is because wireless circuits are easier to "tap" than their hard-wired counterparts.
The HKU Wireless LAN service has been extended to 33 centrally time-tabled classrooms on the Main Campus in October 2000. Currently, a total of 59 WLAN Access Points have been installed in 19 different buildings and open areas. The locations are published on our Centre's webpage.
Based on the encryption technology, the WLAN service is highly secure and is capable of providing a 128-bit Wired Equivalent Privacy (WEP) security in the communication between the wireless network interface card (NIC) and the Access Point. Data will be decrypted at the Access Points.
Users of the WLAN service can now make use of this security feature by downloading a secret encryption key from the University Intranet System (UIS) and configure their PCs for encrypting their wireless communications. A detailed procedure found by following the web links : http://www.its.hku.hk -> Network Connection -> Wireless Local Area Network.
Should you have any enquiries, please contact the undersigned.
Eric LamIn October 2000, we announced the launching of the FormFlow system, which is designed to help departments convert their paper-based application forms to paperless web-based application systems. The use of web forms in collecting data is fast and direct, eliminates human errors in re-typing, and saves time in passing the forms from one department to another. However, if applicant authentication cannot be resolved, the web form is still not a practical solution. With the advent of the electronic service delivery in HKU, the HKU-Certificates can now authenticate an applicant's identity.
We started our pilot use of the FormFlow system in some applications for Computer Centre's services. The FormFlow system was also introduced to several departments to obtain their input and feedback. After the trial use and enhancement of the system in the past few months, we are now ready to extend this service to other departments in the university who are interested in adopting this technology for on-line applications of their services.
Using the highly secure digital signature infrastructure supported by the HKUCA, the FormFlow system allows applications to be submitted and verified on-line. Receiving departments will be notified automatically and immediately, and an automatic reply will be sent by the FormFlow system to acknowledge the receipt of the applications. The FormFlow system aims at benefiting both the applicant and the department in the following ways:
For Users, they can
For Departments, they can
- submit applications on-line without the need to travel to obtain and send in the paper forms;
- enquire the status of any submitted applications on-line at any time;
- be informed of their application results via email.
- enhance their services by providing a more accessible way for their users to submit and enquire applications;
- respond faster to users' applications as the operator will be notified by email when new applications are submitted, and will be reminded if any application has been outstanding for more than 2 days;
- avoid human errors in data entry by office clerks since information is entered directly by users;
- save the time and effort spent in data checking and verification since the system can perform these tasks;
- save the effort in addressing and sending via campus mail since the system communicates by email;
- obtain better management information from the data by further processing, e.g. generating reports and statistics.
In order to promote the use of electronic applications to enhance efficiency in service delivery and to move towards a paperless environment, we would like to help departments to setup their own ESD applications with the FormFlow system. We hope that departments can focus mainly on designing their operation procedures to convenience and serve their users better. Computer Centre is currently working closely with the Office of Student Affairs in setting up some of their services on the FormFlow system.
If you have any further questions on the FormFlow system or would like to discuss with us how you can use the web form to facilitate the submission of your department's application forms, please feel free to contact the undersigned.
Kwan Wing KeungIn a previous article of the Computer News, we had introduced our users to the PC cluster which staff at Computer Centre had been putting together, which comprises eight dual Pentium CPU's interconnected by a dedicated high-speed Gigabit Ethernet switch. In the last few months, we had assembled the hardware and vigorously tested the software. We are pleased to announce that the PC cluster for parallel computing is now available and ready for user testing.
This PC cluster system will provide an alternative solution to the high performance computing facility provided by the IBM SP2 parallel computer (hkusp2.hku.hk). Information about this PC cluster can be found from the webpage located at http://www.its.hku.hk/pccluster.
This PC cluster system will execute distributed memory parallel programs. By using more than one CPU to run your programs, substantial speed-up in execution time can be expected. For certain algorithms, a linear speed up (i.e. speed up proportional to the number of CPUs used) can be achieved. This feature is critical for time/memory consuming applications such as weather forecasting or data mining.
This system is a distributed memory system. Using it would require a certain level of competency in parallel programming. Training courses on parallel programming are available in Computer Centre .
Staff and students are welcomed to discuss with us on the feasibility of using this system in their research projects. Currently, we are creating user accounts in the PC cluster system manually. If you are interested in using this system or have any queries about it, please contact the undersigned for an appointment.
Tel : 28578632
E-mail : firstname.lastname@example.org
We are pleased to announce that the HKUSUA and HKUSUB systems have been upgraded successfully. Please refer to a previous article on "Progress of the SUN E10000 upgrade" for details. The HKUSUA and HKUSUB systems are the general purpose computing servers for all our students.
After this hardware upgrade, the HKUSUA system now has 10 CPUs with 7 GB of main memory while the HKUSUB system has 12 CPUs with 8 GB of main memory. Users should have observed much improvement in systems response time after the upgrade. We shall continue to monitor the system performance to provide our users with good system performance.
We are also pleased to report that we have fixed the bug in the MATHLAB program in the HKUSUA system. About a month ago, some users have reported to us that an error occurred while using the "signal processing" option in the MATHLAB system. The error has been identified as a file-access problem which has now been fixed. We want to thank our users who reported the program bugs and we also appreciate their patience.
We are announcing the retirement of the HKUJNT computer which has served as the central JUPAS (Joint University Programmes Admissions System) for more than five years - a system to allow students to apply for admission to any of the eight tertiary institutions by filling out only one application form. The central JUPAS system is now supported by more powerful machines housed at the Examination Authority. For details of the central system, please contact the JUPAS Office at Tel:2859 2774.We are also planning to retire the HKUMD1 system which has served for 9 years as a general host server for the University's staff working in the premises in the Queen Mary Hospital. The server was placed in our Sassoon Road campus near the users' site because the network connection between the Queen Mary Hospital and the main campus was only a 56Kbps link at that time. At present, the main campus and the Queen Mary Hospital and the Sassoon Road campus are connected by 10Mbps links.
All the staff working in the Queen Mary Hospital and Sassoon Road have computer accounts in our main host servers (HKUSUA and HKUCC) in the main campus, and the importance of the HKUMD1 system is now much reduced. We are planning to move the existing applications on HKUMD1 system to the HKUSUA system. If there is any concern about the change, please contact Charles Cheung at Tel:2859 2488.
Finally, we are announcing the obsolescence of the XEROX's 8900 Series 2 Plotter for the HKUGIS system. This decision is due to under use and high cost for maintenance on this special purpose plotter. The plotter has been installed for more than five years and it is only linked to the HKUGIS (Geographical Information System). If there is any enquiry about the plotter, please contact Charles Cheung at Tel: 2859 2488.
WinZip is an archive utility for Windodws. It is used to compress (zip) and decompress (unzip) files. A zip file contains many smaller files compressed into one for ease of downloading. Most files available on FTP sites for downloading are zip files. A zip file may decompress itself when it is downloaded to your PC (self-extracting), or it may ask you to run a zip program to decompress the files before you install it.
Computer Centre is now coordinating a site-licensing arrangement on the WinZip licenses for the departments of the University in order to take advantage of the bulk volume purchase discount and to offer cost-effective and easy-to-manage licensing program for the benefits of the departments.
Below are some highlights of the arrangement:If you are using the evaluation copy of the license, please note that you are required to buy a copy of the license in order to continue the legitimate use after the expiry of the 21-day evaluation period. For detailed pricing information on the WinZip licenses, please refer to our web page at http://www.its.hku.hk/services/tender.htm.
The price for the WinZip License is offered at HK$20 per copy. Under this site-licensing program, all the WinZip licenses are entitled to free upgrades for two years covering the period from 1 April 2001 to 31 March 2003. The licenses can either be installed on stand-alone workstations or on a networked file server provided that an individual WinZip license is acquired for each workstation that will access the licenses through the network at different times or concurrently. Computer Centre will distribute a copy of the upgrade version of the software to each participating department whenever it is available. The English Language version of the license supports Window95/98/2000.
For further enquiries on the above site-licensing program, please contact our Miss Kitty Ng or Miss Alittlebit Yeung at 2859-2491.
W.K. KwanComputer Centre has been providing an OMR scanning service for many years with an NCS OpScan system. Answers to a multiple-choice examination or a survey would be marked on pre-printed answer sheets which are fed into the optical scanner for processing. The OMR reads the answers and records the data into a file in the PC attached to the scanner. This data file can be further processed or analysed with the use of software programs to produce statistical reports.
After serving for more than 9 years, this OMR system is due to retire as the hardware is worn out and is no longer easy to service when it breaks down. A new model of the NCS OpScan 3 system has recently been acquired to replace the old scanner. The new system will be compatible with the old NCS OpScan5, and will be running under the Windows 98 environment. The scanning software will be more user-friendly than the current system which still runs under DOS.
More information on the new OMR system will be released once it is delivered and installed. The current system is in Room 104 in the Run Run Shaw Building. If you wish to use our Centre's OMR system to help you mark your multiple choice examinations, please contact the undersigned.
We welcome the following new members to Computer Centre :
Mr Neville Cheung Hiu Lun joined the Computer and Network System Operations on February 19, 2001. Neville is a graduate of the Lingnan University and received his Bachelor of Business Administration (Information Systems) degree in 1999.We bid farewell to the following staff and wish them every success in their future endeavors:
Miss Emily Lau Shun Man joined the User Services Team on March 12, 2001. Emily is a graduate of the University of Western Sydney, Australia and received her Bachelor of Applied Science (Computing) degree in 1994.
Miss Ivy Chui Suet Yee joined the General Office on March 12, 2001. Ivy is a graduate of The University of Hong Kong and received her Bachelor of Business Administration (Accounting & Finance) degree in 2000.
Mr Edward Tam Yuk Wah who left on January 31, 2001
Computer Centre is pleased to announce a series of courses scheduled for April to May 2001 to assist staff and students in using the Centre's facilities. The courses will cover the following areas:
Most courses are open to all staff and students free of charge. A fee is charged for courses provided by a course vendor. Some courses require pre-requisites. Click on the course number to see the description of each course.
Users can apply on-line for these courses through the "CC Course Registration" icon in HKUWIN or click the "Staff Registration" or "Student Registration" links below.
|C0815100||Basic HTML Editing||Apr 3, 2001||9:30 am - 12:30 pm||RR-201|
|C0316100||Using CGI programs in Webpages||Apr 17, 2001||9:30 am - 12:30 pm||RR-201|
|C0616200||Introduction to HKU ESD Applications (Staff only)||Apr 26, 2001||9:30 am - 12:30 pm||RR-201|
|C0614000||Introduction to WWW and Internet services||Apr 27, 2001||9:30 am - 12:30 pm||RR-201|
|C0515100||Basic HTML Editing||May 8, 2001||9:30 am - 12:30 pm||RR-201|
|C0215000||Introduction to WebCT||May 15, 2001||9:30 am - 11:30 am||RR-201|
|C0416100||Using CGI programs in Webpages||May 21, 2001||9:30 am - 12:30 pm||RR-201|
|C0215200||WebCT Basic Workshop||May 22, 2001||9:00 am - 1:00 pm||RR-201|
|C0215300||WebCT Advanced Workshop||May 29, 2001||9:30 am - 11:30 am||RR-201|
|C0716200||Introduction to HKU ESD Applications (Staff only)||May 31, 2001||9:30 am - 12:30 pm||RR-201|
|C0813500||SP2 Parallel Programming with workshop||Apr 26, 2001||2:30pm - 5:30 pm||RR-101|
|C0913500||SP2 Parallel Programming with workshop||May 25, 2001||2:30pm - 5:30 pm||RR-101|
Note: RR = Run Run Shaw Building
|W0181900||Word 2000 (Staff only)||Apr 9 & 10, 2001||9:30 am - 5:00 pm||RR-201|
|W0481000||Dreamweaver 3 (Staff only)||Apr 19 & 20, 2001||9:30 am - 5:00 pm||RR-201|
|W0281300||MS FoxPro (Staff only)||Apr 23 & 24, 2001||9:30 am - 5:00 pm||RR-201|
|W0182000||Excel 2000 (Staff only)||May 2 & 3, 2001||9:30 am - 4:30 pm||RR-201|
|W0381700||Flash 4.0 (Staff onlly)||May 17 & 18, 2001||9:30 am - 4:30 pm||RR-201|
Note: RR = Run Run Shaw Building
Courses on Internet Browsing and Webpage AuthoringIntroduction to WWW and Internet Services
This is a 3-hour introductory course. Course contents include:
Introduction to Internet
Using The Netscape Communicator 4 Browser
Reading Chinese on WWW Browser
Tour on the HKU Intranet
Tour on the Global Internet
This 3-hour course workshop on HTML editing using the Netscape Communicator 4 Editor. In the workshop, students would be doing the following exercises:
Exercise 1 - Create a document, try colors, fonts, bullets lists etc.
Exercise 2 - Create targets and hyperlinks
Exercise 3 - Create a table
Exercise 4 - Using image files in your document
Exercise 5 - Uploading your document to the server
This is a 3-hour course on using cgi programs in webpages. Contents include:
Exercise 1 - Running cgi program on the web server
Exercise 2 - Imbedding cgi programs in a web form
Exercise 3 - Putting a counter in a homepage
Exercise 4 - Putting a guestbook in a homepage
Pre-requisite: Basic HTML Editing. Attendants must have HKUSUA computer account.
This is a 3-hour workshop on how to use electronic signatures in electronic documents. It will cover the following topics:1. Introduction to the PKI and ESD concept
2. PKI infrastructure and ESD applications at HKU
3. Using digital signature for HKU ESD applications
4. Overview on building ESD applications for your department
Introduction to WebCT (Web Course Tool)Courses on Parallel Programming
This 2-hour course will discuss the basic functionalities provided by WebCT from a student's point of view to give participants some feelings on what WebCT can do for their course. e.g. browsing course materials, attempting on-line quizzes, using bulletin boards.
This 4-hour course will cover steps for course designers (staff members who actually prepare courses on WebCT) to post lecture materials on WebCT, and to perform customization on course homepages.
Pre-requisites: Introduction to WebCT, Basic HTML Editing.
This 2-hour course will cover more advanced features for course designers, e.g. preparing on-line quizzes, checking statistical data, managing student records.
Pre-requisites: WebCT Course Designer's Basic WorkshopSP2 Parallel Programming with WorkshopCourses on Unix System and Application Software
This is a 3-hour seminar and workshop for people interested in parallel programming using the IBM SP2 Supercomputer. It covers the methodology of writing parallel programs using the message passing interface (MPI). Students should have programming experience in C or Fortran but experience in parallel programming is not needed. Sample programs will be given to users in the hands-on workshop.
This 3-hour seminar on High Performance FORTRAN provides an easy way to write data parallel programs in MIMD computers such as the IBM SP2. The High Performance FORTRAN is an extension of the FORTRAN 90 in several areas, including:
Introduction to FORTRAN 90 Programming
- Data distribution features
- Data parallel execution features
- Extended intrinsic functions and standard library
- EXTRINSIC procedures
This 9-hour course provides and introduction to the structure and syntax of the FORTRAN 90 language for FORTRAN 77
programmers. After taking this course, users will be able to write FORTRAN 90 programs using arrays and write reusable and
readable codes using the data encapsulation feature of FORTRAN 90.Introduction to UNIX
This is a 3-hour introductory course for users with little or no Unix experience. The course will cover the Unix computing environment, the Unix file system, the editor, email, disk quota and mail quota allocations and commonly used Unix commands.
This is a 2-hour introduction course on the use of MAPLE V for mathematical computations.
The course covers:
Syntax of Maple V commands
Some Common Operations
Programming in Maple V
MATLAB is an integrated computing environment for numeric computation and visualization. This 2-hour seminar will give an
introduction on using MATLAB in numerical analysis, matrix computation and graphics etc.
Mathematica is a general computer software system and language intended for mathematical and other applications. In this 2-hour seminar, examples of using Mathematica in numerical calculations, graphics, algebra and calculus, solving equations etc, will be shown.
The SAS package is an integrated system for data analysis. In this 2-hour seminar, users will learn how to create a SAS
data set, to retrieve data from the data set and to perform some commonly used statistical procedures. Users are expected to have some statistics background.
This is a 2-hour seminar for users with some statistics background. Users will learn how to read the input data as well as to
perform some simple statistical analysis.
This is a 3-hour seminar on the HKU network with an introduction to the network topology, network services, and the software for accessing the HKU network. The HKU network can be accessed from the following venues:
PPP - for dialing in from home
Hallnet - for student residing in residence halls
ACEnet - for accessing everywhere from any network pointMS Word 2000 ($360)
This is a 2-day course especially designed for users who want to learn how to navigate through and work with documents; manipulate text; change formatting and page layout; and preview and print a document.
Course Outline :
Chinese Inputting Method & Chinese Word 2000* ($360)
- Word 2000 processing concepts
- Using dialog boxes and icons
- Documents editing
- Files save/retrieve and Management
- Files conversion and import/export filters
- Selecting fonts and using special text and symbols
- Auto formatting and style options
- Using thesaurus and hyphenation, spelling and grammar check
- Creating multiple columns and table
- Positioning text and graphics with frames
- Assembling documents with mail merge
- Working with long documents
- Printing master documents, envelopes and labels
- Data linking and embedding
This is a 2-day course especially designed for users who are familiar with the English microcomputer working environment but with little experience on Chinese microcomputer operation. The course will cover :
PowerPoint 2000 ($200)
- Basic principle Changjei Chinese character input method.
- Basic operation of Microsoft Word 97 under the Chinese Windows 95 working environment.
- Techniques and common practices in preparing Chinese document.
This is a 1-day course on making a professional presentation slide show using PowerPoint2000. Contents include:
- Introduction to PowerPoint
- Creating a presentation using "Auto Content Wizard"
- Understanding PowerPoint views
- Adding clip art and pictures
- Customise slide shows
- Transition effects and text animation
- Printing slides and speaker notes
- Creating special text effects with WordArt
- Creating organisation charts
- Inserting Microsoft Word table and Excel spreadsheet
- Creating charts
Access is a powerful database software allowing users to create database and database applications without any programming work. This is a 2 day course.
Contents of this course include:
Ms Excel 2000 ($360)
- The Access 2000 fundamental database components
- Using a database wizard
- Creating a database
- Defining data types and setting field properties
- Using the primary key
- Adding and deleting records
- Finding and replacing records
- Filtering and sorting records
- Relational database
- Making use of queries
- Using quick form and quick report
- Creating a customised form
- Changing design of forms
- Creating print reports
- Mailing labels
The course outline of this 2-day workshop include :
- Spreadsheet concepts, basic movement
- data entry techniques & create formulas
- using special functions formatting
- cells formatting, data & formulas cell reference
- workbook save & retrieve
- using dialog box commands, icons & toolbars
- creating an embedded chart on worksheets
- creating graphical objects on worksheets
- worksheets printing techniques
- database query and table handling auto filter
- worksheet and workbook linking
- useful built-in & functions, PMT, vlookup, (if, sumif)
- add-in program, auto save
- graph and picture handling and slide show
- goal seeking and scenario manager
This is a 2-day course on using the Adobe Photoshop, a software for photo retouching, image editing and color painting.
Adobe Photoshop 4.0 has many new and enhanced features in auto-updating of formats, multiple layers control, digital watermarks for copyright, effects filters, and other enhancements for control of quality etc.
Course outline :
Adobe Illustrator 8 ($500)
- Photoshop Basic
- Selections, Mask and Channel Operation
- Enhancing Photo
- Montage and Collage
- Using Filters
- Combining Photoshop and PostScript
- Special Effects
- 3D/4D Adding Depth and Motion
This is a 2-day course on using the Adobe Illustrator 8, a popular illustration software that can create graphically rich artwork for print or the Web.
Course Outline :
1. Basic concepts on computer graphic design
2. Using various drawing tools
3. Grid and guides
4. Text editing, path type and area type and use of different fonts
5. Rotating and resizing objects
6. Mask effect, transforming objects from 2D to 3D
7. Inserting graphic images
This 2-day course is designed for users who want to learn how to use Macromedia Dreamweaver 3, a powerful & professional visual editor for creating and managing web pages. With Dreamweaver, it's easy to create cross-platform, cross-browser pages.
Course outline :
1. Dreamweaver Work Space
2. Site Planning & Site Management
3. Understanding Hyper Link
4. Using Images & Animations
5. Using Cascading Sytle Sheet
6. Creating Forms & Frames
7. Creating Interactive Homepage
Pre-requisite: Basic HTML Editing
This 2-day course is designed for students who want to learn how to use Macromedia Flash 4, to produce special effects and animation, for a multimedia homepage. It can help users produce home pages with vector and bitmap graphics, motion, MP3 audio, form input and interactivity.
Course outline :
1. Flash Work Space
2. Drawing and Editing Graphics
3. Editing scenes and objects
4. Using Timeline
5. Creating animation and using sound files
6. Using Actions
7. Publishing and Exporting to movie
8. Uploading homepage
Pre-requisite: Basic HTML Editing
This 2-day course provides an introduction to Visual FoxPro, a fast relational database management system in Windows. It is a 32 bit Xbase database engine, the application can be used in Windows 95/98/NT environments. It can also support Microsoft SQL Server/Client Server.
1. Starting Visual FoxPro
2. Organizing with Project Manager
3. Explore a database
- Creating: new table, Query, view of local data, One-to-many form
4. Ordering data using indexes
5. Collecting tables into a database
6. Finding information
- Querying data, Updating data with views, Updating multiple tables
7. Displaying information
- Designing reports and labels, Displaying data in forms
8. Visual FoxPro with other Application - Sharing information with other programs.
This 2-day course is designed for students who want to learn how to use Corel DRAW, the most popular vector-based drawing program that makes it easy to create professional artwork - from simple company logos to intricate technical illustrations.
1. Basic concepts on computer graphic design
2. Using various drawing tools
3. Style and color of line
4. Text editing, Fit text to path, Uses of different fonts
5. Rotate, skew and resize objects, Group and combine objects
6. Mask effect, transform 2D objects to 3D using Extrude function
7. Inserting graphic images
1. Since workshops on Microsoft Office97 and other programs for Windows are organised in conjunction with a course vendor, the Whiz Company, there is a nominal charge on the course.
For courses requiring a fee, please send payment to Computer Centre together with your registration form, or as soon as you have registered on the web, otherwise your registration is considered invalid and will be replaced by another applicant. Payment can be made in cheque (payable to the University of Hong Kong), or through departmental requisition (for applicants supported by departments). Successful applicants will be notified by e-mail or telephone at least one week before the commencement of the workshop. Once accepted, the fee is not refundable. However, substitution of participant is possible by written notification to the Centre.
2. The workshops on Chinese Word 97will be conducted in Cantonese.
3. Enrolment for some courses may be for staff only while others are for students only. Where it is not specified, the courses are open to all staff and students of the University.
* The maximum number of participants for workshops held in Room 135, Old Library Building is 25; Room 201, Run Run Shaw Building is 22; and Room 101, Run Run Shaw Building is 20.
|General Enquiries||2859 2495|
|Computer Operations (Network and Operational problems)||2859 2496|
|Help Desk (Software and general problems)||2859 2480|
|Equipment Maintenance||2859 2774|
|60-minute lines||30-minute lines|
|56Kbps PPP Lines (v.90
(24-hour service and support modems of all speeds)
Please click here to see how to configure the settings to use the lines.
|408 lines for all users||29757000||168 lines for all users||29647000|
|96 lines for all users||21057100|
|96 lines for staff only||28595100||48 lines for staff only||29642300|
|48 lines for HKU Graduate Account users (no connection time limitation)||22497100|
Computer Room Opening Hours - 24 hours
|Run Run Shaw Building
Room 101, and 103, Room 113 (ACEnet)
| 24 hours
Monday (00:00 a.m.) - Sunday (12:00 p.m.)
|Run Run Shaw Building (Room 201)||Monday ?Friday (9:00 a.m. ?5:00 p.m.)
Saturday (9:00 a.m. ?12:30 p.m.)
Sunday - Closed
|Run Run Shaw Building Room 210 (Workstation)
Knowles Building (Room 218),
K.K. Leung Building Room LG-108 (ACEnet)
|Monday - Friday (9:00 a.m. - 10:00 p.m.)
Saturday (9:00 a.m. - 3:30 p.m.)
Sunday - Closed
|Old Library Building (Room 134)||Summer schedule: July 3 - Sep10, 2000
Monday ?Friday (9:00 a.m. - 5:00 p.m.)
Saturday (9:00 a.m. - 1:00 p.m.)
Term schedule: from Sep 11, 2000
|Old Library Building (Room 135)||Monday ?Friday (9:00 a.m. - 5:00 p.m.)
Saturday (9:00 a.m. - 1:00 p.m.)
Holiday Schedule for Computer Laboratories from April to May, 2001
(Other than Rooms RR101, RR103 and RR113 (ACEnet) which are open all the time, all other microcomputer/workstation/ACEnet laboratories will be closed on Sundays, University holidays and public holidays)
|Holidays||Closed on||Re-open on|
|Ching Ming Festival||April 5, 2001 (Thursday) 9:00 a.m.||April 6, 2001 (Friday) 9:00 a.m.|
|Easter Holidays||April 13, 2001 (Friday) 9:00 a.m.||April 17, 2001 (Tuesday) 9:00 a.m.|
|The Buddha's Birthday||April 30, 2001 (Monday) 9:00 a.m.||n/a|
|International Labor Day||May 1, 2001 (Tuesday) 9:00 a.m.||May 2, 2001 (Wednesday) 9:00 a.m.|