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. Access methods provide an API for programmers to transfer data to or from device, and could be compared to device drivers in non-mainframe operating systems.

Read more about Access Method:  Reasons For Introducing Access Methods, Storage Access Methods, Networking Access Methods, IMS, Modern Implementations

Famous quotes containing the words access and/or method:

    “Make thick my blood,
    Stop up th’ access and passage to remorse,
    That no compunctious visitings of nature
    Shake my fell purpose.”
    —William Shakespeare (1564–1616)

    “Letters are above all useful as a means of expressing the ideal self; and no other method of communication is quite so good for this purpose.... In letters we can reform without practice, beg without humiliation, snip and shape embarrassing experiences to the measure of our own desires....”
    —Elizabeth Hardwick (b. 1916)