A text file containing special system configuration commands. It is found in the root directory on an MS-doS computer, typically on drive C (the {hard disk}). It is read by {MS-doS} at {boot time}, after the setup has been read from CMOS RAM and before running AUTOEXEC.BAT. It can be modified by the user. Some example commands which CONFIG.SYS might contain are: DEVICE=C:doSHIMEM.SYS /testmem:off Load the extended memory manager. DEVICE=C:doSEMM386.EXE RAM Load the expanded memory manager. BUFFERS=10,0 Specify memory for disk buffers. FILES=70 Set the number of files that can be open at once. doS=UMB doS is located in UppeMemoryBlock. LASTDRIVE=Z Disk drives are A: to Z:. FCBS=16,0 Set the number of file control blocks. DEVICEHIGH /L:1,12048 =C:doSSETVER.EXE Report the doS version to older programs. doS=HIGH doS should maintain a link to UMB. COUNTRY=358,437 C:doSCOUNTRY.SYS Set the country code for some programs. STACKS=9,256 Set dynamic stacks for hardware control. SHELL=C:doSCOMMAND.COM C:doS /E:1024 /p Set the location of the command interpreter. (1995-03-16)