(CONFIGure SYStem) A text file that contained commands to load drivers and establish settings in a DOS PC. Along with AUTOEXEC.BAT, it resided in the root folder. CONFIG.SYS was included in Windows ...

I wouldn't remember specifics now, back in the DOS days I had many sets of different files that I'd reboot into depending on what I wanted to do. And I had a single .BAT file that handled them. If I ...