Some anti-virus software is memory resident and loaded on start up. It then actively monitors systems and programs that are ran, for infections. Such examples include boot files, discs and files which are accessed during start-up
resident memory pool: cannot be swapped out
The Kernel
Memory resident instructions are instructions that remain in the memory while the computer is running. Nonresident instructions remain on the storage medium until they are needed.
Resident PROGRAMS are still present in memory of the computer and need not be launched by the operator. Usually their function coincides with the operating system.
It means Terminate-Stay-Resident. A TSR is a program that remains in memory when the program ends.
Commonly referred to as the 'kernel'
Upper, lower, middle, all of above
Upper, lower, middle, all of above
A Terminate Stay Resident (TSR) program is a DOS program that stays in memory following its execution. This allows installation of drivers in DOS.
Loader
Loader
A memory resident, which means it remains inmemory while the computer is running, other parts of the operating system are nonresident, meaning these instructions remain on a storage medium until they are needed.