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Disk Operating System (DOS)

Q1: The term TSR is an abbreviation for:

A Terminate Stay Ready

B Testing System Read

C Terminal Still Ready

D Terminate Stay Resident

E None of the above

ANS:D - Terminate Stay Resident

The term "TSR" stands for "Terminate Stay Resident. " It originated in the context of early DOS (Disk Operating System) software, where it referred to a program that, after execution, would remain in memory rather than terminating completely. This allowed the program to respond quickly when needed again, without the overhead of reloading from disk. This was particularly useful in the days when computer memory was limited and reloading programs from disk was time-consuming.



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