精美通用ppt模板黑底地球儀主題-文庫吧
2025-07-07 09:57 本頁面
【正文】 diana (Amoco) made major contributions to CICS. ? The IBM Des Plaines team tried to add support for popular nonIBM terminals like the ASCII Teletype Model 33 ASR, but the small lowbudget software development team could not afford the $100permonth hardware to test it. IBM executives incorrectly felt that the future would be like the past with batch processing using traditional punch cards. ? IBM reluctantly provided only minimal funding when public utility panies, banks and creditcard panies demanded a costeffective realtime puting system (similar to the 1965 IBM Airline Control Program used by the American Airlines Sabre puter reservations system) for highspeed data accessandupdate to customer information for their telephone operators (without waiting for overnight batch processing punch card systems). 樣例文本 B ? CICS originally only supported a few IBMbrand devices like the 1965 IBM 2741 Selectric (golf ball) typewriter. The 1964 IBM 2260 and 1972 IBM 3270 video display terminals eventually played major roles in the evolution
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