Also known as: am.
AM has various meanings in the General category. Discover the full forms, definitions, and usage contexts of AM in General.
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. Access method 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.
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