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What is the difference between internal and external commands in MS-DOS?

In: MS-DOS, The Difference Between [Edit categories]

Answer:

INTERNAL COMMANDS

These are those commands which are contained in command.com files of MS-DOS.
These are those functions that are built into the command interpreter.
There is no need of any external file in computer to read internal MS-DOS command.
These commands can be used as long as DOS is running on the system.
Internal commands do not vary from system to system.
These are ver, time, del, md, cd, copy con, cls, date, vol, ren, copy etc.

EXTERNAL COMMANDS

These are those commands which are not in-built in MS-DOS.
External commands are those which are not included in the interpreter.
There is a need of an internal file in the computer to read external MS-DOS command.
External command may vary from system to system. This means any two computers with same version of MS-DOS may have same internal commands, but may have different external commands.
These are tree, xcopy, diskcopy, more, print etc.

First answer by ID0000000000. Last edit by ID1975673542. Question popularity: 1 [recommend question].

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