MSX-DOS

thumb|250px| running in a Windows console on [[Windows 95 (MS-DOS Prompt)]]

AUTOEXEC.BAT is a system file that was originally on DOS-type operating systems. It is a plain-text batch file in the root directory of the boot device. The name of the file is an abbreviation of "automatic execution", which describes its function in automatically executing commands on system startup; the filename was coined in response to the 8.3 filename limitations of the FAT file system family. In the autoexec.bat file one can execute every command being available either internally within the OS-specific command.com TSR or as an extra command (.com/.exe files)

American computer programmer

programming language

MSX-DOS is a discontinued disk operating system developed by Microsoft's Japan subsidiary for the 8-bit home computer standard MSX, and is a cross between MS-DOS v1.25 and CP/M-80 v2.2.