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Systems Network Architecture
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Systems Network Architecture is IBM's proprietary networking architecture, created in 1974. It is a complete protocol stack for interconnecting computers and their resources. SNA describes formats and
IBM 3745-170
IBM 3745-170
IBM 5250
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IBM 5250 is a family of block-oriented terminals originally introduced with the IBM System/34 midrange computer systems in 1977. It also connects to the later System/36, System/38, and IBM AS/400 syst
Systems Network Architecture
…Services (USS), there is the 3270 data stream mainly used by mainframes such as the System/370 and successors, including the zSeries family, and the 5250 data stream mainly used by minicomputers/servers such as the System/34, System/36, System/38, and AS/400 and its successors, including System i and IBM…
IBM 5251, connected to an AS/400 system
IBM 5251, connected to an AS/400 system
IBM 5251 display station on front of IBM 5120 system
IBM 5251 display station on front of IBM 5120 system
IBM 3486 Terminal, a later terminal with 5250 functionality, capable of supporting two independent sessions concurrently, and with an amber screen. Th
IBM 3486 Terminal, a later terminal with 5250 functionality, capable of supporting two independent sessions concurrently, and with an amber screen. The keyboard is a 122-key variant of the Model M; the original 5251-1 had a much smaller beam-spring keyboard.