This paper introduces the CASnet engineering project—the Engineering project of network interconnection for a hundred of research institutes in Chinese Academy of Sciences, including the target of the project,technology and principle for network construction, network scale and network applications.

The libraries growing into a member of the worldwide network needs a system of the graphic symbols and characters that can be distingnished and processed by each library,just as the human society advancing to a new pattern of the multiple and integrated world needs an information system of graphic symbols and characters commonly understood.The system must meet the needs of the multilingual information processing for the libraries.It is ISO/ IEC 10646 Information technology-Universal Multiple-Octet Coded Character Set..

SGML (Standard Generalized Markup Language) is an information technology stemming from the fields of printing and publishing. It is both a SGML and a document descriptive markup language.Merits of SGML includes database creating and maintaining, data exchanging and circulating,manufacturing electronic publications,etc.

This paper introduces some methods of connection with OCLC via the Internet, the software,hardware and technigues by the use of the connection model with OCLC in the China Europe International Business School Library as on example.

There is a great abundance of information resources on the Internet.The beginners feel urgent need of finding material about WWW to answer the questions,such as What is HTML language?How to program hypertext with HTML language?How to acquire and use a variety of browsers?How to set up a WWW server or a client?etc.This paper provides some information resources about WWW.The beginners can acquire and use them,and they can even find more resources following the tracks of this information.

It has become essential to lighten the burden on the Internet and tighten up the management on the information flowing through networks.This paper analyses the dealing processes of TCP/IP protocols with the inputing/outputing datagrams, then puts forwards a concept of online information rearchiving, purposed for a next use of information and realized by modifying the IP protocol deatils.Furthermore,the author makes a study on how to place restrictions on the information which is permitted into a specific network in various forms.

Telnet is the important way of information searching on the Internet.This paper introduces the information searching of the largest title index and literature service system in the world by means of Telnet.The said system including 17,000 kind of serials,420 library catalogues,2 0 commercial database and 150,000 company information.

Internet is a network with largest scale ,most users and greatest influence in the world.It is rich in information resources and makes information shareing and exchange available without space and time limit.Characterized by fast,simple,efficient and cheap communication,E-mail is a strong tool to navigate Internet.Through mail servers it can inquire information and transfer files needed,playing the same role as other service tools in Internet and making people get access to the informative environment provided by In ternet.

This article introduces succtinctly the principal aim and tactics of campus network,give emphasis on discussing the tactics for developing library automation and scheme of practice in view of a provincial key university.

Based on software engineering concepts and in accordance with software life cycle Model,the article deals with the practical establishing process of library automation system and several matters concerning maintainance.

The paper describes components of Chinese-English general document database system.It dicusses the features in the generality,document database-oriented system,retrieval functions,response duration and new man-machine interface in details.

In this paper,after analysing some fields defined in CN-MARC format how to use the Character set, also analying GB and ISO/IEC Standard system about Chinese character set.The author gives the reason for using unintegritive Chinese character set in CN-MARC, and find out the way to solve this problem.

This paper summarizes cause of backgound on copies,takes more than 20 kinds of Canon,Ricoh,Toshiba,U-Bix and Xerox PPC for example,presents specific adjusting methods-after copy density key restraining brackground expired.

The author explounds and analyses the reasons and mechanism on the breakdown of seseral different kinds of Copier and sets fouth the ways and methods to eleminate breakdown of these machines in this paper.