A memory page containing a heavily used variable that was initialized very early and is in constant use is removed when

Consider the following heap (Figure) in which blank regions are not in use and hatched region are in use.

The sequence of requests for blocks of size $$300, 25, 125, 50$$ can be satisfied if we use.

A part of the system software, which under all circumstances must reside in the main memory is:

A simple two-pass assembler does the following in the first pass: