ERIC Number: ED087380
Record Type: Non-Journal
Publication Date: 1972-Jan
Reference Count: N/A
Short Feasibility Study on Using the Post Office Telex Network for On-Line Computer Information Retrieval.
O'Sullivan, D. F.; Hall, F. J.
In 1972 there were 33,000 Telex installations in the United Kingdom with 240,000 predicted by 1983. The feasibility of using these Telex systems for on-line accession of computer based information systems was investigated in this report. Comparisons between the Telex system and the Teletypewriter or Teleprinter system now in use reveal that the costs of the Telex system are less than the Teleprinter system. However, the Telex system is one third slower and more errors result. Other features such as computing costs, data retrieved and types of messages are comparable. An examination of technical aspects show that the difficulties are not unsurmountable. Appropriate hardware is available, but existing software would need to be modified. It is recommended that the feasibility of using the Telex system be further investigated in a real experiment. Appendixes contain the character code used by the Telex system, the Teletypewriter system and other systems, a proposed Telex output interchange set, a data bank interchange set, sample enquiries on the Telex and Teletypewriter system with speed comparisons and data on costs. (JG)
Publication Type: N/A
Education Level: N/A
Authoring Institution: Queen's Univ., Belfast (Northern Ireland). Dept. of Computer Science.
Identifiers - Location: United Kingdom; United Kingdom (Great Britain)