Which of the following system software resides in the main memory always?
Answer Details
The system software that always resides in the main memory is the Operating System (OS). In many operating systems, the loader resides permanently in memory. The OS manages the resources of the computer and acts as an interface between the user and the hardware. It is responsible for tasks such as memory management, process management, file management, and input/output operations. Text editors, assemblers, linkers, and loaders are all types of system software, but they do not always reside in the main memory. They are typically loaded into memory when needed, and can be swapped out of memory when other processes need more memory. This is because main memory is a limited resource and the OS dynamically allocates it to different processes as needed.