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Virtual Telecommunications Access Method (VTAM) is the IBM subsystem that implements Systems Network Architecture (SNA) for mainframe environments. [1] VTAM provides an application programming interface (API) for communication applications, and controls communication equipment such as adapters and controllers. In modern terminology, VTAM ...
VTAM, [17] [18] a software package to provide log-in, session keeping, and routing services within the mainframe. A terminal user would log-in via VTAM to a specific application or application environment (e.g. CICS, IMS, DB2, or TSO/ISPF). A VTAM device would then route data from that terminal to the appropriate application or application ...
BTAM was superseded by VTAM for Systems Network Architecture (SNA) devices. BTAM continued to be supported in later iterations of the system architecture, and IBM finally withdrew support in 2000. BTAM requires the application program or transaction processing system to handle almost every detail of the protocol. This is harder than using a ...
With the advent of IBM's SNA, TCAM was eventually superseded by VTAM. TCAM was said to have the following enhancements over QTAM: [2] Improved buffering, with more buffering options. Improved organization of message queuing on disk including multiple volume support. Back-up copies of messages maintained on disk.
Mark Edward Kelly (born February 21, 1964) is an American politician, retired astronaut, and United States Navy captain serving as the senior United States senator from Arizona, since 2020. He is a member of the Democratic Party. Kelly flew combat missions during the Gulf War as a naval aviator before being selected as a NASA Space Shuttle pilot
The history of the US Army Corps of Engineers (DIANE Publishing, 1999). online; Becker, William H. From the Atlantic to the Great Lakes: a history of the US Army Corps of Engineers and the St. Lawrence Seaway (Historical Division, Office of Administrative Services, Office of the Chief of Engineers, 1984) online.
SEAC John W. Troxell (right) and the senior enlisted advisors for the unified combatant commands brief the media in the Pentagon, November 28, 2017.. This is a list of active duty United States senior enlisted leaders and advisors serving in the uniformed services of the United States.
This office defines policy and guidance, and it plans direction for the organizations within the Corps. The Chief of Engineers is currently a lieutenant general billet but in the past has been held by field grade officers as low as major. Civilian oversight of the Chief of Engineers is provided by the Assistant Secretary of the Army (Civil Works).