tailieunhanh - Fiber Optics Illustrated Dictionary - Part 14

The Fiber Optics Illustrated Dictionary - Part 14 fills a gap in the literature by providing instructors, hobbyists, and top-level engineers with an accessible, current reference. From the author of the best-selling Telecommunications Illustrated Dictionary, this comprehensive reference includes fundamental physics, basic technical information for fiber splicing, installation, maintenance, and repair, and follow-up information for communications and other professionals using fiber optic components. Well-balanced, well-researched, and extensively cross-referenced, it also includes hundreds of photographs, charts, and diagrams that clarify the more complex ideas and put simpler ideas into their applications context | Fiber Optics Illustrated Dictionary BITNET BITNET-NJE Because It s Time Network. An international cooperative academic network established in 1981 by Ira H. Fuchs City University of New York and Greydon Freeman Yale University . It began as a cooperative project at the City University of New York with Yale as the first outside connection through a leased telephone line. It ran originally on IBM mainframes and Digital VAXes communicating through EBCDIC formats. From there it spread across the . and became international when it was joined by the European Academic and Research Network EARN in 1982. A grant from IBM in 1984 helped establish support services for BITNET in the . BITNET promoted the noncommercial exchange of research and education information and was organized as a nonprofit corporation in 1987. By 1991 BITNET included almost 1500 organizations in 49 countries and for a while was the world s largest academic network. Participation declined thereafter due to the rapid growth of die Internet and BITNET s inherent interactivity limitations. In the late 1980s it was merged with The Computer Science Network CSNET to form the Corporation for Research and Educational Networking CREN . In the end CREN recommended to its members that BITNET dependency be terminated by December 31 1996 in favor of other network systems primarily the Internet. BITNET is based on an IBM communications protocol called Network Job Entry NJE which made it practical to connect mainframe computers through telephone circuits. It uses a store-and-forward system of transmitting information through nodes on the system. See Network Job Entry RELAY UUCP. BITNIC BITNET Network Information Center. A support center for administering BITNET computer networks initially established with the aid of funding from IBM in 1984. After 1987 funding was member-based and volunteer-supported. See BITNET. BITS See Base Information Transport System. bits per second bps. A very common means of describing .

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