Technology and Teaching - IT Times
Contents
1. Volume 5 No 1 September 1996 Information Technology Times Ag Econ Poised and Ready for Network 21 by Aviva Luria Information Technology When it comes to Network 21 the Agricultural and Resource Economics Department is in an en viable position Thanks to a bit of luck and the foresight of program mer analyst Jerry Nishimoto Ag Econ is about as ready as can be for transitioning to Network 21 Two years ago Ag Econ moved from its former digs divided be tween Voorhies and AOB4 to the Social Science and Humanities building which is wired with 10BASE T category 5 cable and fixtures the sort of stuff required to hook up to Network 21 This makes life easier for Nishimoto who can simply call Information Technology to activate the existing 1OBASE T NAM when a new fac ulty member moves in Back in the old space Nishimoto would have had to ask Physical Plant to string new cable into the office to create a new network connection The move to the Social Sci ences and Humanities building was a smooth one Basically it was a matter of shutting down the systems in AOB4 A crew of gradu ate students helped carry the com puters and within an hour we were up and running again Nishimoto says Nishimoto credits the smooth transition to advance planning Kevin Harrington of I T Commu nications Resources worked with Kathy Edgington a programmer analyst for Ag Econ to check all The increasing rel2. Back to School Checklist for Students These tips may not fit in your backpack but they will make for smoother studies Here are five things to get you going Get Connected Go to the UCD Bookstore and pick up Bovine Online This software package and manual will register your account and get you up and running on e mail and the World Wide Web Visit I T Express As long as you re at Shields brary you may as well get that computer question answered and get those copies made Find Self Paced Learning Lab A library of self paced learning materials on frequently used software programs and operating systems is available at 1101 Hart Hall Check out the New Labs Windows 95 is now running in all the PC labs but don t expect to find 95 in the basement of Hutchison The Hutchison labs are closed and new and Improved labs are open in the basement of O Ison Computer labs have Internet access and are open to students when not in classroom use For more information go to http Im ucdavis edu labs Administer CPR In case of emergency contact Computer Printer Repair Located in Art Annex this is the place to turn when your computer konks outs CPR special izes in Apple products and Hewlett Packard printers Call 752 7762 et ey Online for Faculty Reserve a Computer Lab To reserve a computer lab for classroom use send e mail to lab reserve ucdavis edu or call 752 8549 One thing to keep in mind your favorit
3. and faxback service And able online at http Im ucdavis edu labs even a Bovine Online Changes in computer labs Hutchison Labs Closed The computer managed by Information Technology and central classroom labs in the basement of computing systems are outlined below Information Hutchison are closed permanently about Bovine Online campus modem service and the new helpline and faxback service are described in the right hand columns on Pages 1 and 2 e New Labs in Olson New computer labs specifically designed for use as teaching labs are open in Rooms 21 amp 27 of Olson Computer Labs Hall If you teach or study in the campus computer No More Macs in 163 Shields The lab in labs please note the changes listed below To reserve See What s New on Page 2 Connect with Bovine Online Surf s up Connecting to the Internet just got a little bit easier Available at the UCD Bookstore is Bovine Online an installation program that will en able you to open a campus computer account send e mail and surf the Web Developed by Information Tech nology Bovine Online is available in both Macintosh Windows 3 1 and Windows 95 platforms The Eudora e mail program Netscape Web browser and a user manual are in cluded in the package Price is 14 99 For your convenience Bovine O nline also is available for purchase at the copy services desk at I T Express on the first floor of Shields I T Express
4. computing environ ment at UC Davis Meetings will in clude demonstrations discussions of service issues raffles and question and answer sessions All interested Macintosh users are invited to at tend Meeting locations will be an nounced on a monthly basis The next meeting is scheduled for Wednesday October 23 For fur ther information contact Steve Faith safaith ucdavis edu or PaulRivette orrivette ucdavis edu 30 31 Basic Melvyl Library System Commands to find books and journal articles at UC Davis Library Instruction Programs 3 10 4 p m Shields Library Microcomputer Room To enroll email vgwalberg ucdavis edu or call 752 6439 Introduction to Eudora 1 30 4 30 p m 40 Mrak For registration information call Staff Development and Professional Services at 752 1766 Advanced Melvyl Searching Special features and techniques and tips for working efficiently Library Instruc tion Programs 4 10 5 p m Shields Library Microcomputer Room To enroll email vgwalberg ucdavis edu or call 752 6439 Remote Information Access Communications programs logging in passwords email downloading special displays Library Instruction Programs 11 00 11 50 am Carlson Health Sciences Library To enroll e mail vgwalberg ucdavis edu or call 752 6439 Personal Bibliographic Databases Programs to manage your libraries and reprints Class Library Instruc tion Programs 12 10 1 00 p m Carlson Health
5. didnt have to do anything the switch was made and the per formance of the Internet connec tion just became better says Russ Hobby Director of Information Faculty Can Usethe Web to Put Course Materials on Reserve The UC Davis General Library has developed an Electronic Re serves system that allows faculty to request material for Reserves via the World Wide Web Faculty may use this system to place informa tion on reserve at both Shields and the Health Sciences Library Elec tronic Reserves are located at the following addresses Shields http lib ucdavis edu reserves erbr html Health Sciences http www lib ucdavis edu hsreserves hseres reserves htm The Electronic Reserve Web sites provide faculty with instruc tions on how to place material on Reserve and of course a submis sion form Faculty may request to have their reserve listings directly linked to lecture notes and other non copyrighted material so stu dents can access these class materi als online Inclusion of material in the Electronic Reserve system is strictly voluntary Access to the course lists is restricted to the UCD Campus domain which means only persons entering through a registered campus machine will be allowed access This does include off campus access as long as access is through the campus modem pool or through a PPP network connection to the Davis campus Students who visit the Web site will find information
6. no longer provides disk copies of Internet software However Eudora Netscape and other software programs may be downloaded from the World Wide Web at http Online ucdavis edu For further information call 752 2548 Dialing in Read This As a campus computer account holder you have dial in access to the campus network through the campus modem pool Dial 752 7900 to telnet send e mail and perform other text based func tions Dial 752 7925 to access the World W ide Web and transfer files using FTP UC Davis maintains a pool of 500 mo dems with 14 4k line rates Traffic is heavy and callers frequently encoun ter busy signals Those who desire fewer busy signals more consistent connectivity and faster connections should consider contracting for service through a pri vate vendor Information Technology is See Modem Service on Page 2 Volume 5 No 1 September 1996 Information Technology Times Campus Now Has Expanded Internet Access This summer UC Davis ex panded network capacity to the Internet as a result of a new agree ment coordinated by the Office of the President to serve the northern UC campuses Berkeley Santa Cruz San Francisco and Davis The new agreement replaced the previous contract negotiated in 1987 when UC Davis gained Internet access through the Bay Area Regional Research Network BARRN et One of the best things about the new agreement is that campus users
7. 21 in frastructure via the cutover pro cess Information Technology will collaborate with departments to prepare for the transition of de partment computers and devices How does Nishimoto view the upcoming transition to Network 21 Fortunately because were all 10BASE T and everything is cat egory 5 I m not anticipating a whole lot of changes in terms of hardware Moving Into this build ing inadvertently forced us to be ready for Network 21 he says Things would have been differ ent had Nishimoto remained in Voorhies and AOB4 where Ag Econ shared a subnet with another department In 1984 when Ag Econ grew too large for Voorhies and spread across the street to AOB4 the department paid for a thick ethernet line to connect the two buildings The connection was made be fore ethernet was commonly used and it constituted the backbone for Ag Econ s Local Area Network The department bought a router hooked up its VAX workstations and connected its LAN to the cam pus network Troubleshooting of ten meant cutting off a piece of the cable People take Ethernet for granted now Nishimoto says but back then we were doing things blind in a way Because of the way Ag Econ s network grew the network used many different protocols We put in our own thick ethernet before there were any specifications we added GatorStar for the Mac users it was working but knew our network should have be
8. 4 00 p m Shields Library 2nd Floor Instruction Room To enroll email vgwalberg ucdavis edu or call 752 6439 Introduction to Eudora 8 30 11 30 a m For registration information call Staff Development and Profes sional Services at 752 1766 Understanding Your Personal Computer Noon 1 00 p m Cabernet Room Silo Staff Development and Professional Services No registration necessary Advanced Melvyl Searching Special features and techniques and tips for working efficiently Library Instruction Programs 11 00 11 50 a m Carlson Health Sciences Library To enroll email vgwalberg ucdavis edu or call 752 6439 Introduction to Netscape 8 30 11 30 am 14 Hutchison open to students amp faculty For registration W 9 Netscape 16 Eudora 23 Melvyl Eudora 15 16 17 21 OCTOBER 1996 T F S 10 Eudora 11 12 17 E mail Lists 24 PowerPoint Intro Remo l Access 18 19 25 20 information contact I T Training at learnit ucdavis edu or 754 8091 Introduction to Microsoft Excel Oct 14 amp 16 1 30 4 30 p m 14 Hutchison For registration informa tion call Staff Development and Professional Services at 752 1766 Finding Journal Articles Databases on and beyond Melvyl including CD ROMS Library Instruction Programs 3 10 4 30 p m Shields Library Microcomputer Room To enroll email vgwalberg ucdavis edu or call 752 6439 Introduction to Microsoft W
9. Sciences Library To enroll email vgwalberg ucdavis edu or call 752 6439 Internet Access Expanded provides individual users with the From Page 2 the President requested 4 Mbps of service starting July 1 1996 in creasing to 10 Mbps by the end of the contract year June 30 1997 An evaluation team met to re view the proposals in May While there were several good proposals to connect each individual cam pus the costs were as high as 260 000 for UC Davis reflecting current Internet pricing After viewing the options the UC evalu ation team agreed that the best op tion for accessing the Internet is to use UCNet for individual campus connections and install a large con nection to the Internet in Berkeley for the northern campuses The UC Davis campus cost for this op tion is 100 000 for 1996 97 An Internet connection will be in stalled at either UCLA or Irvine to serve the southern campuses This is a best of both worlds solution says Hobby because it benefit of increased bandwidth to the Internet yet puts us in control of overhead associated with ser vices and maintenance UC Davis began using the 10 Mbps UCNet connection for pri mary Internet connectivity on July 18 The I T Times is published by the Division of Information Technology California Davis to inform the campus community and others of information ica facilities and activities a to members o
10. aff Development and Professional Services at 752 1766 Basic Melvyl Library System Commands to find books and Journal articles at UC Davis Library Instruction Programs 3 10 4 00 p m Shields Library Microcomputer Room To enroll email vgwalberg ucdavis edu or call 752 6439 Administering an Electronic Mailing List Working Session 8 30 11 30 a m 14 Hutchison Information Provider Series For registration information contact I T Training at learnit ucdavis edu or 754 8091 22 23 24 28 29 Intermediate Microsoft Word Oct 22 amp 24 8 30 11 30 a m 14 Hutchison For registration informa tion call Staff Development and Professional Services at 752 1766 Introduction to Using a FileMaker Pro Database Oct 22 amp 24 1 30 4 30 p m 40 Mrak For registration information call Staff Development and Professional Services at 752 1766 Finding Journal Articles Databases on and beyond Melvyl including CD ROMS Library Instruction Programs 3 10 4 30 p m Shields Library Microcomputer Room To enroll email vgwalberg ucdavis edu or call 752 6439 Advanced Melvyl Searching Special features and techniques and tips for working efficiently Library Instruc tion Programs 4 10 5 p m Shields Library Microcomputer Room To enroll email vgwalberg ucdavis edu or call 752 6439 Overview of the Internet N oon 1 p m Cabernet Room Silo Staff Development and Professional Services No prior regi
11. cess to authorized users Components of the security tool kit include Kerberos single sign on and one time passwords Now available are new style login IDs and Kerberos passwords that will be needed to access central computing systems in the future To learn how to choose your own new style ID go to http www ucdavis edu ucnames Technology Support for Faculty To ease the incorporation of technology into academic courses Information Technology offers a special Train the Trainer pro gram for faculty Instructors may request consultations or group workshops on a variety of topics including e Electronic Mail e File Transfer Protocol FTP e Internet News e Operating Systems e Spreadsheets e Telnet e Word Processing e World Wide Web Information Technology pro vides sample documentation course outlines and training ses sions To schedule a workshop send email to learnit ucdavis edu or call 754 8091 Technology s Advanced Net worked and Scientific Applica tions Hobby who worked with the Office of the President to evaluate new options for providing effi cient yet cost effective access to the Internet said the following points were factored into the deci sion 1 Demand for network ser vices is skyrocketing In both public and private sectors 2 The number of commercial sites on the Internet now outnum bers the number of educational and research sites 3 Most regional networks are no
12. e by move date The Tools D Network Adapter Cards D Transceivers D 10BASE T patch cords His Advice Jerry Nishimoto D Make sure you have an up to date list of all your IP addresses D If possible test each computer with the new hardware and software before the move D Test each NAM before the move or have a computer that you know is configured correctly for troubleshooting D Review and plan for the move the NAMs in the new space to en sure they were functional The testing and planning were so com plete that the move amounted to little more than taking apart pull ing together and plugging in says Nishimoto The only equipment he remembers purchasing were media converters to thinnet sys tems campus to support the heavy traf fic loads resulting from the in creased usage of networked appli cations Approved by the Regents in November 1993 construction be gan on the Network 21 project last summer Completion is slated for fall 1997 and most buildings in cluded in the project should be connected by July Over half the communication closets on campus have been up dated to accommodate Network 21 and much of the outside plant fiber optic cable has been installed Work also has begun on the instal lation and modification of Net work Access Modules NAMs that will enable users to plug into Net work 21 Departments will migrate from the current campus network UCDNet to the Network
13. e computer lab may not be where It used to be The labs in Hutchison are closed and they have been replaced by two new labs in Rooms 21 and 27 Olson If you ve been teaching in the Social Sciences and Humanities Lab please note that this facility is now managed by Letters amp Science Ask for a Faxback For Recommended Solutions Quick Tips and other information about using technology on campus call 754 HELP Follow the prompts and request the faxback service The information you need will be delivered directly to your fax ma chine Request a Class List If e mail plays into your lesson plans this new service is for you This program automatically subscribes regis tered students to your class mailing list by extracting data from the Student Information System Call 752 1208 or look on the Web at http sysweb ucdavis edu faqs classlist html Order Your Faculty Services Guide Everything from how to change your password to how to order audio visual equipment is found in this guide published by Information Technology To request a copy send e mail to itpubs ucdavis edu Technology and Teaching N ew Services O ffer an Integrated Approach Whats new in technology for teaching this alab for classroom use call 752 8549 or send e year New computer labs Automated e mail class mail to lab reserve ucdavis edu Up to date lists Improved network security Workshops for information on campus computer labs is avail faculty A new helpline
14. en performing better than it was When Ag Econ moved to So cial Sciences and Humanities building Nishimoto saw a dra matic difference in the reliability and performance of the local area network As far as Network 21 goes Ag Econ is resting easy PRO ECT UPDATE 2 wail EE NetWork 21 5 000 000 4 000 000 3 000 000 2 000 000 1 000 000 1996 Number of Messages Sent Per Month April June 1995 7 000 6 000 5 000 4 000 World Wide Web Mbytes Transmitted Per Month ouwnononwnounoewnowowno O O O O ODnannnonend DW DD D t ko E e gt w oe a a oE O a OS aa gt c z D QA F Oc QBs FSF CC z Dare gt O c A Ss to the new network Information Technology will schedule Cutover Orientation meetings for network administra tors and Management Services Of ficers MSOs in all Network 21 ar eas Departments will be notified in advance of scheduled orienta tions Network 21 will make it possible for the campus to support the heavy traffic loads resulting from the increased usage of email the World Wide Web and other networked applications Volume 5 No 1 September 1996 Information Technology Times I T CALENDAR S M T 1 Library Overview 8 WWW Word Publishing Intro 13 14 15 Excel Journal Articles 20 21 22 MacOS FileM aker Pro 27 E 29 indows 311 Ex cel Editor s Note If you wish to enroll ina class offered by Staff Development a
15. f the user community and other universities a Use of trade or corporation names in this eee does not constitute endorsement T Times articles may be reprinted as lon as the source is accurately quoted an credited Editor Designer Marianne Post Masthead Doug Gentry Send e mail to itpubs ucdavis edu niversity of Davis It is distributed free of charge 0 the University of California Davis Catherine Fehr Curran 752 5965
16. for Fax back Service During the 1995 96 academic year T Express fielded over 31 000 calls at its 752 2548 number To better serve its customers Information Tech nology has added a new helpline and faxback service The number to call is 754 HELP The automated attendant allows you to route yourself to a spe cific service speak directly to an I T Express technology consultant or re quest a faxback The faxback service allows you to retrieve Q uick Tips Rec ommended Solutions and other printed information over the tele phone Documentation will be faxed to the fax machine of your choice Give the service a try by calling 754 HELP I T Express Consultants Still on Call at 752 2548 You may speak to a technology con sultant by calling 752 2548 Please note that telephone consultation Is just one of three services offered by T Ex press Walk in services and online consultation also are available Walk in Consultation amp Copy Services Lo cated on the first floor of Shields L brary I T Express consults with clients On a walk in basis and provides copy services including copies of library materials that cannot be removed from the premises Last year I T Ex press handled over 33 000 in person technical support consultations Online Consultation If you have a tech nology related question send e mail to Ithelp ucdavis edu I T Express consultants will respond to your query online CASE STUDY
17. iance on in formation technology in teaching and research is placing a tremen dous demand on campus technol ogy infrastructure With the ever growing use of e mail and the World Wide Web to name just two applications the amount of traffic traveling between comput ers on the campus network is in creasing at an explosive rate Construction continues on Network 21 the high speed fiber optic network that will connect over 200 buildings in the core area of campus and pave the way for the Davis campus to fully utilize digital communication technology The overall goal of the project is to provide campus users with di rect access to high speed data net works thereby linking UC Davis with worldwide information re sources When fully configured the buildings connected to N et work 21 will have the ability to bring video voice and data to the desktop Simply stated Network 21 will make it possible for the The Individual Jerry Nishimoto Programmer Analyst lll Supervisor Agricultural and Resource Econom ICS The Challenge To transition a Local Area Network made up of a variety of ethernet cabling CoAx and 10BASE T to an entirely LOBASE T system The Solutions D Planning for needed hardware to make all equipment compatible with 10BASE T ca bling and fixtures D Planning cutover date with I T D Equipping machines with hardware before cutover date D Pre testing of NAMs D Implementing chang
18. ilable to UC campuses on an as needed basis however BBN would not Increase the bandwidth available to UC campuses without increased charges BBN provided a bandwidth of 3 Mbps shared be tween UC Davis and all other BBN Sacramento customers which was inadequate especially considering the growing demand on the sys tem In a Request for Proposal is sued this spring the UC Office of See Internet on Page 4 Modem Service From Page 1 negotiating non exclusive service agreements with the following two companies Calweb Phone 800 509 9322 from Davis area 916 641 9320 from Sacramento area On the Web htto www calweb com Earthlink Phone 800 395 8410 On the Web http www earthlink net Please Note If you do contract with a private vendor for dial up access you will sill need to login to a campus sys tem before accessing password pro tected resources such as MELVYL specialized databases and Usenet N ewsgroups Recommended Solutions Purchasing a modem Or maybe you are in the market for a new computer To assist you with your hardware and software purchases Information Tech nology publishes Recommended Solu tion documents on a variety of topics Purchasing a Modem and Hardware Solutions are just two To obtain a copy of these and other Solutions visit I T Express send e mail to itpubs ucdavis edu or look on the Web at htto www ucdavis edu IT Solutions Dial 754 HELP
19. indows 95 Oct 15 amp 17 8 30 11 30 a m 40 Mrak For registration informa tion call Staff Development and Professional Services at 752 1766 Introduction to Netscape 1 30 4 30 p m 40 Mrak For registration information call Staff Development and Professional Services at 752 1766 Advanced Melvyl Searching Special features and techniques and tips for working efficiently Library Instruc tion Programs 3 10 4 p m Shields Library Microcomputer Room To enroll email vgwalberg ucdavis edu or call 752 6439 Introduction to Eudora 9 11 a m 14 Hutchison Student Faculty For registration informa tion please contact I T Training at learnit ucdavis edu or 754 8091 Finding Journal Articles Databases on and beyond Melvyl including CD ROMS Library Instruction Programs 4 10 5 30 p m Shields Library Microcomputer Room To enroll email vgwalberg ucdavis edu or call 752 6439 Introduction to Administering an Electronic Mailing List 1 30 4 30 p m 14 Hutchison Information Provider Series For registration information please contact T Training at learnit ucdavis edu or 754 8091 Finding Journal Articles Databases on and beyond Melvyl including CD ROMS Library Instruction Programs 11 00 am 12 30 p m Carlson Health Sciences Library To enroll email vgwalberg ucdavis edu or call 752 6439 Introduction to MacOS Oct 21 amp 23 8 30 11 30 am 40 Mrak For registration information call St
20. mp Professional Services you must complete an Application for Enrollment Applications arein the Staff Development Catalog To request an application call 752 1766 October 1 10 14 Library Overview Library and Internet W EB Information Re sources Library Instruction Programs 3 10 4 00 p m Shields Library 2nd Floor Instruction Room To enroll email vgwalberg ucdavis edu or call 752 6439 WWW Publishing Level Informa tion Provider Series Oct 7 amp 9 8 30 11 30 a m For registration information please contact T Training at learnit ucdavis edu or 754 8091 Introduction to Eudora Student Faculty 6 8 p m 14 Hutchison For registration information please contact I T Training at learnit ucdavis edu or 754 8091 Advanced Melvyl Searching Special features and techniques and tips for working efficiently Library Instruc tion Programs 3 10 4 00 p m Shields Library Microcomputer Room To enroll email vgwalberg ucdavis edu or call 752 6439 Introduction to Word Oct 8 amp 10 8 30 11 30 a m 14 Hutchison For registration information call Staff Development and Professional Services at 752 1766 Introduction to Netscape 5 30 8 30 p m 14 Hutchison Open to students and faculty For registration information please contact I T Training at learnit ucdavis edu or 754 8091 Library Overview Library and Internet WEB Information Re sources Library Instruction Programs 3 10
21. on poli cies governing Electronic Reserve use including how much they will be charged if material is not re turned by the due date along with a list of courses with material on Reserve What s New in Technology From Page 1 163 Shields Library now Is a PC only lab Windows 95 Installed Win dows 95 has been installed in all PC labs and is supported by I T Express e AT amp T Lab TheAT amp T lab in the Social Sciences and Hu manities building is no longer a public use lab This teaching and research lab now is managed by Letters amp Science Automated Class Lists With the new automated class list program students no longer have to subscribe manually to e mail class lists When an instruc tor requests a class list students in the class are automatically sub scribed to the list The instructor must provide the course number The program extracts information from the Student Information Sys tem SIS database using the course reference number to deter mine which students to subscribe For further information about au tomated class lists call 752 1208 or look on the Web at http Ssysweb ucdavis edu faqs classlist html New Login IDs Development continues on new tools used to provide secure access to the Banner Student Infor mation System SIS DaFIS the World Wide Web and other cam pus computing systems The goal is to protect the confidentiality of information while providing ac
22. stration necessary Introduction to PowerPoint 1 30 4 30 p m 40 Mrak For registration information call Staff Development and Professional Services at 752 1766 Introduction to Windows 3 11 Oct 28 amp 30 8 30 11 30 am 40 Mrak For registration information call Staff Development and Professional Services at 752 1766 WWW Publishing Level II Oct 28 amp 30 8 30 11 30 am 14 Hutchison Information Provider Series For registration information contact T Training at learnit ucdavis edu or 754 8091 Remote Information Access Communications programs logging in passwords e mail downloading special displays Library Instruction Programs 3 10 4 p m Shields Library Microcomputer Room To enroll email vgwalberg ucdavis edu or call 752 6439 Personal Bibliographic Databases Programs to manage your libraries and reprints Class Library Instruc tion Programs 4 10 5 p m Shields Library Microcomputer Room To enroll email vgwalberg ucdavis edu or call 752 6439 Intermediate Microsoft Excel Oct 29 amp 31 1 30 4 30 p m 40 Mrak For registration information call Staff Development and Professional Services at 752 1766 Polish Your Apple Skills The UC Davis Macintosh User Group UCDMUG will meet at 5 30 p m on the third Wednesday of each month UCDMUG is a campus special interest group that focuses on Issues Surrounding the Macintosh computer and how itis used and in tegrated into the
23. w operated by commercial ven dors 4 Internet access is becoming much more expensive 5 The old campus connec tion to the Internet did not meet Campus needs In 1987 UC Davis joined the other northern UC campuses of Berkeley Santa Cruz and San Fran cisco along with Stanford and the NASA Ames Research Center to create the regional network known as BARRNet This network was linked to other National Science Foundation NSF funded regional networks through NSFNET the national backbone interconnecting regional networks This system of networks based on the protocols developed for the Department of Defenses ARPANET launched the explosion of networking that has become the Internet of today By 1991 the number of com mercial sites on the Internet by passed the number of research and education sites The original agreement be tween the UC campuses and BARRNet which has been as sumed by the commercial vendor BBN Planet allowed UC Davis to connect to the Internet at a cost of 10 000 per year The cost was kept low because the UC campuses were BARRNet hub sites and UC personnel helped operate the net work BARRNet also helped sub sidize the educational connections by charging its commercial cus tomers a higher rate BBN Planet now treats all customers the same and rates would increase signifi cantly if the old arrangement were to continue Under the original contract BARRNet increased network band width ava
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