This paper describes a large computer networking project,called NCFC (The national Computing and networking Facility of China) including its construct,operations and usage .It also gives a brief introduction about Internet which is the largest computer network in the world. And NCFC had connected into Internet.Finally,the author gives some ideas about building China Internet.

Z39.50 is an American National Standard,which has been used on Internet.It is one of the basic tools,supporting the OSI.The main context includes the service provided and protocol supported.

The article describes the characteristics,application,problems in practice and t rends of electronic mails. The Internet and OSl standards and protocols for E-mail are also discussed.

A thesaurus-based retrieval model of information retrieval system is introduced in the paper.And the writer also evaluates the parameters and shortcomings of the model.

CD-ROM database searching and online searching are the main computer information retrieval types today.Each of them has its features and weaknesses .CD-ROM database searching and online searching affect each other,coexist and competite.They make up each other s deficiencies in the coexistence,and thus strenghten the whole capacities of computer information retrieval.

A new method of making statistical analysis in bibliometrics is reported with MEDLINE-CDROM database which has no such function originally. The method includes two operation manuals:Select Search Term on Screen(Lateral Searching)and Boolean Logic operation. The operating manuals are described and the method is discussed.

The article discribes the method of transfer for literature from CD-ROM using dBASE program,and explains the program process for MEDLINE on CD-ROM and usage of dBASE files for medical information research.

This article offers the trouble-shooting methods in dealing with the operating system problems,responsive error messages,troubles in using BiblioFile cataloging system,and problems with printers.

In this paper ,RDBMS ORACLE is used to make a book searching system which is a supplement to the original system.It uses the data source of the original system and the powerful searching function of ORACLE.The 4' th generation language(4GL)FORMS is also used to make the screen more friendly,that is,all the main fields of 9 books can be displayed in one screen simultaneously.

The library automation integrated system of the Documentation and Information Center of Chinese Academy of Sciences, which based on TOTALS library automation integrated system imported from Transtech International Corp. U.S.A. , has been set up and run since 1993. This article introduces the TOTALS system and its characteristics in detail. The ideas and technologies adapted by TOTALS system are significant to the development of library automation system and library information network system.

Some technical problems and methods of the storage of visual and audio material ,such as the prevention of damp,dust and high temperature of audiotape and visual tape,were described.

From a BI-OCR user's view,the paper describes the state of the arts of the OCR technology as well as the suitable and unsuitable data media for it.It also analyses the problems of the BI-OCR in the application of database construction.At the end.it givew the users evaluation for BI-OCR.