QTAM
Encyclopedia
Queued Telecommunications Access Method (QTAM) is an alternative to the simpler Basic Telecommunications Access Method
(BTAM) communications access method
, introducing built-in queuing. It was developed by IBM
as part of DOS/360 and OS/360
and used mainly to transmit batches of data. The OS/360 version of QTAM was not carried over to OS/VS1
, SVS
or MVS
, although its successor, TCAM
, was.
Basic telecommunications access method
Basic Telecommunications Access Method was a low-level programming interface specified by IBM for use on the IBM System/360 for sending and receiving data through telecommunication lines...
(BTAM) communications access method
Access method
An access method is a function of a mainframe operating system that enables access to data on disk, tape or other external devices. They were introduced in 1963 in IBM OS/360 operating system...
, introducing built-in queuing. It was developed by IBM
IBM
International Business Machines Corporation or IBM is an American multinational technology and consulting corporation headquartered in Armonk, New York, United States. IBM manufactures and sells computer hardware and software, and it offers infrastructure, hosting and consulting services in areas...
as part of DOS/360 and OS/360
OS/360 and successors
OS/360, officially known as IBM System/360 Operating System, was a batch processing operating system developed by IBM for their then-new System/360 mainframe computer, announced in 1964; it was heavily influenced by the earlier IBSYS/IBJOB and Input/Output Control System packages...
and used mainly to transmit batches of data. The OS/360 version of QTAM was not carried over to OS/VS1
OS/VS1
Operating System/Virtual Storage 1, or OS/VS1,was an IBM mainframe computer operating system designed to be run on IBM System/370 hardware....
, SVS
OS/VS2 (SVS)
Single Virtual Storage refers to Release 1 of Operating System/Virtual Storage 2 ; it is the successor system to the MVTBut not 65MP option of Operating System/360...
or MVS
MVS
Multiple Virtual Storage, more commonly called MVS, was the most commonly used operating system on the System/370 and System/390 IBM mainframe computers...
, although its successor, TCAM
Telecommunications Access Method
Telecommunications Access Method is an access method, in IBM's OS/360 and successors computer operating systems on IBM System/360 and later, that provides access to terminals units within a teleprocessing network....
, was.