System Requirements

MASM requires the following configuration:

A personal computer running DOS version 3.0 or later or OS/2 version 1.1 or later.

640K (kilobytes) of available memory (RAM) for operating under DOS (1 megabyte of RAM is recommended).

3 megabytes of RAM for operating under OS/2 (4 megabytes are recommended).

At least 384K of extended memory if you want to debug large DOS programs.

A hard-disk drive with at least 4 megabytes of free space. (The actual space required depends on the options you select.)

A floppy-disk drive.

Programs assembled with MASM version 6.0 run under DOS versions 2.1 and later.