* The DOS Program
The actual DOS program is the file IBMDOS.COM or MSDOS.SYS. It provides a high-
level interface for user (application) programs. This program consists of file
management routines, data blocking/deblocking for the disk routines, and a
variety of built-in functions easily accessible by user programs.
When a user program calls these function routines, they accept high-level
information by way of register and control block contents. When a user program
calls DOS to perform an operation, these functions translate the requirement
into one or more calls to IBMBIO.COM, MSDOS.SYS or system hardware to complete
the request.
file: /Techref/dos/msdos.htm, 0KB, , updated: 1999/2/20 11:24, local time: 2024/8/31 18:22,
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