Enliven
发表于 2025-3-30 11:43:28
Some International Developments in Data ServicesThis paper reviews developments in data communication services. Most of the paper is concerned with the development of Public data networks. In addition, some other services,such as Telex, Facsimile and Prestel are considered in view of their influence on PTT data networks.
–scent
发表于 2025-3-30 14:57:40
UK Post Office Current and Future PlansThe UK PO provides a number of operationally existing and experimental data services namely:-
Flatus
发表于 2025-3-30 19:53:17
Cryptography and Crypto-SystemsIn this section we shall describe what modern cryptographic methods are expected to achieve - the criteria of security they have to meet. It would be convenient if there were proofs of the security of a cryptographic algorithm but this is not so. At best they can be shown to resist the known methods of attack.
shrill
发表于 2025-3-31 00:34:03
Protocols and Network InterconnectionAs the number of computer networks is increasing more and more, it will become more desirable to carry out interconnections between them.
无弹性
发表于 2025-3-31 00:55:53
978-94-009-9433-1Springer Science+Business Media Dordrecht 1979
名词
发表于 2025-3-31 08:56:16
Interlinking of Computer Networks978-94-009-9431-7Series ISSN 1389-2185
BROTH
发表于 2025-3-31 11:50:03
1389-2185 28th and September 8th 1978 at Bonas, France. The development of computer networks has proceeded over the last few decades to the point where a number of scientific and commercial networks are firmly established - albeit using different philosophies of design and operation. Many of these networks ar
Cholecystokinin
发表于 2025-3-31 16:43:23
Conference proceedings 1979eptember 8th 1978 at Bonas, France. The development of computer networks has proceeded over the last few decades to the point where a number of scientific and commercial networks are firmly established - albeit using different philosophies of design and operation. Many of these networks are serving
JEER
发表于 2025-3-31 21:00:46
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钩针织物
发表于 2025-3-31 23:01:59
Satellite Communications Systems and the European Project Stellaions served ranging from 100 upwards. The general method of operation of these systems is for the stations to beam up signals to the satellite at one frequency and for the satellite repeater to broadcast these signals down to all the stations using another frequency.