Reviews the history of Telidon, the Canadian videotex system; describes Telidon's alphageometric method of graphic-information encoding; discusses some experimental applications of the Telidon system; and describes attempts at developing a North American standard for videotex systems. Five figures are included. (JL)

This article is the result of author's visit to more than 16 of China's top university libraries, various Academy of Sciences libraries, and National Peking Library during 1984-85 academic year. Topics covered include hardware inventory, software applications development, Chinese ideograph automation, China's library classification system, and…

Describes nine categories of library automation systems intended for direct use by library patrons: catalog information systems; electronic information systems; information presentation systems; instructional systems; consultation systems; information services and delivery systems; conferencing systems; integrative systems; and user computing…

The Calgary Libraries Telidon Trial involved four major libraries--Calgary Public, Mount Royal College, Southern Alberta Institute of Technology, and the University of Calgary--and resulted in videotex library services. This report discusses the beginning of the project, types of information input, conclusions of library-information providers, and…