Name the different types of memory?

a. Main memory also called primary memory or RAM

b. Secondary memory or backing storage

c. Cache

d. Internal process memory

Throw some light on Internal Process Memory.

- This memory consists of a set of high-speed registers. They work as temporary storage for instructions and data.

Explain compaction.

During the process of loading and removal of process into and out of the memory, the free memory gets broken into smaller pieces. These pieces lie scattered in the memory. Compaction means movement of these pieces close to each other to form a larger chunk of memory which works as a resource to run larger processes.