The recent developments of computer technologies, including the softwares, hardwares,storage, I/O devices, and their applications in documentation processes are introduced in this paper. A spectrum of marketing policies concerned with user- friendship, especially the OPEN policy, are described in high terms. Relations between the computer technology and the microphotography are also presented briefly.
This paper discusses the application situation and preparation methods of full-text databases,and then it reviews the technical advances of full-text searching from text match algorithms and text match hardwares.Finally,it indicates that the combination with hyper-text technology and the processing by the multimedia will be the research focus in the future.
Input/output of multiliingual information is the bottle-neck of computer integrated control system.This paper discusses systematically the input interface of multilingual information under the environments of current computer systems and new computer systems.According to the actual demands,two output modes are suggested.
The article presents the design,application and search commands of an OPAC in PLA medical library.In addition to traditional access points,more are allowed to use in searching such as by trancated titles,compressed keys and keywords in context.Functions of data downloading,cataloging records transmission and online“HELP”are explained further ing the article.
The reasons for changes in library automated systems are explored in the paper.The factors and selection guides for system upgrade and changes are discussed in detail.
article describes the history,development ,system features,databases and products of UTLAS(University of Toronto Library Automation System)in Canada.It also discusses briefly the development and functions of its Chinese CATSS(Catalog Support System).
This paper introduces the bar-code readers,which have been commonly used in circulation departments of libraries in China ,and their types,functions,features,the ratio between performance and prices,use effects as well as the overall comparisons among them.Some suggestions are made for proper use of readers and the future applications of China-made readers are also explored.
In this paper,variations in information requirement are discussed by showing the advances in information requirement and modern technology of information requirement.Countermeasures are presented with emphasis on the enhancement of research and service of information technology.
This paper presents a design of machine-readable Chinese thesaurus,the database of which fully expresses in a simple structure the all-dimensional cross-reference relations among the subject terms,making it possible for the document retrieval systems to do extension searching using narrower terms.This design is proven feasible in a simulated test on IBM 286 compatible computer.It also proposes a way to code the symbal lists,where by the whole codes are more directly perceivable with 50% of the storage space saved.
