Title: X.25 Explained: Protocols for Packet Switching Networks (Computers & Their Applications Series)
Publisher: Ellis Horwood, Ltd.
Publication Date: 1985
Language: English
ISBN 10: 0470201835
ISBN 13: 9780470201831
Binding: Hardcover
Condition: Good
Dust Jacket Condition: No Jacket
Weight: 0.75 pounds

About this title

Synopsis

An interesting story in the development of networking. The idea of a heterogeneous network was a breakthrough. In addition to describing the lower 4 levels of the ISO (International Standards Organization) model for Open Systems Interconnection (OSI) the preface reminds us what the situation was then. Every device or application was a unique problem. Digital Equipment Corporation and IBM dominated the market with two "standards", DECnet and SNA, respectively. Other manufacturers implemented one or the other. In 1977 ISO started a project to develop protocols the cover a range of requirements regarding error control, file access, job transfer, terminal control, and other functions.the book recalls an attempt by UK Telecom and IBM to set up a Value Added Network based on SNA, but the government refused them a license because they did not comply with OSI. It was an historic moment.

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