mem MS-DOS Command

Type: External (4.0 and later)

Syntax:

MEM MEM [/program|/debug|/classify|/free|/module(name)] [/page]

Purpose: Displays the amount of installed and available memory, including extended, expanded, and upper memory.

Discussion

Used to display a variety of types of information about how your system is using available memory.

Options

/program – Specifies the name, location, size, and type of each program for which memory information is to be displayed (available with DOS 4.0 and 5.0 only).

Cannot be used with /C or /D. This option can be abbreviated as /P.

– /debug – Specifies additional information about the programs in memory. This option can be abbreviated as /D.

/classify – Displays programs that are in conventional and upper memory. Cannot be used with /D, /F, or /M name.

This option can be abbreviated as /C.

/free – Lists the free areas of conventional and upper memory. You can use the /Free switch with /Page but not with other MEM options (new with DOS Version 6).

This option can be abbreviated as /F.

/module modulename

Shows how a program module is currently using memory. You must specify the program name after the /MODULE option.

You can use the /MODULE option with /PAGE, but not with other MEM options (new with DOS Version 6). This option can be abbreviated as /M. /page – Pauses after each screen of output. This switch can be used with any of the other MEM options (new with DOS Version 6). This option can be abbreviated as /P.

Example

To display the programs that are currently in conventional and upper memory, enter mem /classify