The whole DOS was only a tiiiny line between the bios. In fact, I think it really was only “DISK” os.
Edit: https://mrszeto.net/CIT/interrupts.htm
DOS only did file system operations and a few date/time calls
Parent,
> I should know the answer to this, but was using the BIOS the only way to interact with hardware like disks, mice, and keyboard?
First link from your URL
> READ CHARACTER FROM STANDARD INPUT, WITH ECHO
Also drivers loaded via config.sys would extend MS-DOS, and be exposed via additional interrupts, e.g 0x33h for mices.
Now is interrupt 0x33h populated by MS-DOS, after loading a mouse driver configured in config.sys, still MS-DOS API or not?
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The whole DOS was only a tiiiny line between the bios. In fact, I think it really was only “DISK” os.
Edit: https://mrszeto.net/CIT/interrupts.htm
DOS only did file system operations and a few date/time calls