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Intro to Mainframe VSAM - Mainframe VSAM Tutorial - Part 1 (Volume Revised)
VSAM stands for Virtual Storage Access Method. VSAM is a file storage access method used in MVS, ZOS and OS/390 operating systems. It is a high performance access method used to organize data in form of files in Mainframes. VSAM is used by COBOL and CICS in Mainframes to store and retrieve data. VSAM makes it easier for application programs to ...
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12 reactions | In the late 1960s, when mainframe computing was evolving, interactive computing was being done with time-sharing because it was economical. But, says Xerox PARC’s Butler Lampson, that wasn’t how anyone wanted to do it. Everyone wanted an efficient, working personal computer like the Alto. He describes exactly how popular the Alto was when it became available in the early 1970s. https://bit.ly/45iFdOc #XeroxAlto | Computer History Museum | Facebook
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12 reactions | In the late 1960s, when mainframe computing was evolving, interactive computing was being done with time-sharing because it was economical. But, says Xerox PARC’s Butler Lampson, that wasn’t how anyone wanted to do it. Everyone wanted an efficient, working personal computer like the Alto. He describes exactly how popular the Alto was when it became available in the early 1970s. https://bit.ly/45iFdOc #XeroxAlto | Computer History Museum | Facebook
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