Talk:Access method

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What's different?[edit]

This page seems to make the distinction in terms of mainframe vs. mini or microcomputer. It seems to me one difference between OS/360 (and successor) access methods, and the device drivers of other systems, is that access methods run in user state (not supervisor state) and use user memory space. (As some point the access methods to EXCP, and pass the generated channel program to the OS to verify aknd run. The OS has to verify that it doesn't do anything that it shouldn't do.) Gah4 (talk) 23:34, 10 April 2015 (UTC)

Access methods do a lot that device drivers don't. Device drivers plus, e.g. ISAM software would be one example. Peter Flass (talk) 03:38, 11 April 2015 (UTC)