Computer Science - Computer Hardware - Discussion

Terminate-and-stay-resident programs are utility programs that a computer user might call up several times a day, while working in another program, using a hotkey. Borland Sidekick was an early and popular example of this type. Other TSRs serve as device drivers for hardware that the operating system does not directly support.

After trying to unload a TSR, you get an error message saying that other TSRs were loaded after the one you tried to remove. By using SYS: commands could you use to see the current load order.