If you want to learn more about DOS, I found that "The MS-DOS Encyclopedia", by Ray Duncan[0] is a pretty nice read. It is really accessible, yet it gets you in

If you want to learn more about DOS, I found that "The MS-DOS Encyclopedia", by Ray Duncan[0] is a pretty nice read. It is really accessible, yet it gets you into the nitty-gritty details*. The history is very interesting too (assuming its accurate; it's a Microsoft published book after all). *goes up to to MS-DOS 3.1 though. [0] https://archive.org/details/The_MS-DOS_Encyclopedia_Ray_Duncan/mode/2up https://archive.org/details/The_MS-DOS_Encyclopedia_Ray_Dunc...