See also: Record-oriented filesystem, Record (computer science), Input/Output Control System, and Record Management Services
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An access method is a function of a mainframe operating system that enables access to data on disk, tape or other external devices. Access methods were present in several mainframe operating systems since the late 1950s, under a variety of names; the name access method was introduced in 1963 in the IBM OS/360 operating system.[1] Access methods provide an application programming interface (API) for programmers to transfer data to or from device, and could be compared to device drivers in non-mainframe operating systems, but typically provide a greater level of functionality.
^M. A. Auslander, D. C. Larkin, A. L. Scherr: "The Evolution of the MVS Operating System", pages 478-479 Archived November 19, 2008, at the Wayback Machine
An accessmethod is a function of a mainframe operating system that enables access to data on disk, tape or other external devices. Accessmethods were...
Indexed Sequential AccessMethod (ISAM) is a method for creating, maintaining, and manipulating computer files of data so that records can be retrieved...
In telecommunications and computer networks, a channel accessmethod or multiple accessmethod allows more than two terminals connected to the same transmission...
Virtual Storage AccessMethod (VSAM) is an IBM direct-access storage device (DASD) file storage accessmethod, first used in the OS/VS1, OS/VS2 Release...
Virtual Telecommunications AccessMethod (VTAM) is the IBM subsystem that implements Systems Network Architecture (SNA) for mainframe environments. VTAM...
Basic Direct AccessMethod, or BDAM is an accessmethod for IBM's OS/360 and successors computer operating systems on System/360 and later mainframes....
WISPr refers to this web browser-based authentication method as the Universal AccessMethod (UAM). Captive portals are primarily used in open wireless...
further extended into a multiple accessmethod or channel accessmethod, for example, TDM into time-division multiple access (TDMA) and statistical multiplexing...
native z/OS accessmethod, or Overflow Sequential (OSAM), an IMS-specific accessmethod that optimizes the I/O channel program for IMS access patterns....
access is sometimes the only way of accessing the data, for example if it is on a tape. It may also be the accessmethod of choice, for example if all that...
Queued Telecommunications AccessMethod (QTAM) is an IBM System/360 communications accessmethod incorporating built-in queuing. QTAM was an alternative...
In IBM mainframe operating systems, Queued Sequential AccessMethod (QSAM) is an accessmethod to read and write datasets sequentially. QSAM is available...
accessmethod is used. The channel access control mechanism relies on a physical layer multiplex scheme. The most widespread multiple accessmethod is...
Basic Telecommunications AccessMethod (BTAM) is a low-level programming interface specified by IBM for use on the IBM System/360 for start-stop and binary...
suicide methods less accessible leads to an overall reduction in the number of suicides. Some method-specific ways to do this include restricting access to...
private member variable. They are also known collectively as accessors. The mutator method is most often used in object-oriented programming, in keeping...
arbitrary metric. Octree PH-tree Quadtree R-tree: Typically the preferred method for indexing spatial data. Objects (shapes, lines and points) are grouped...
In IBM mainframe operating systems, Basic sequential accessmethod (BSAM) is an accessmethod to read and write datasets sequentially. BSAM is available...
In the context of an HTTP transaction, basic access authentication is a method for an HTTP user agent (e.g. a web browser) to provide a user name and...
networks. In developing countries mobile broadband is often the only accessmethod available. Traditionally the divide has been measured in terms of the...
passing is a channel accessmethod providing fair access for all stations, and eliminating the collisions of contention-based accessmethods. Token Ring was...
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