|Que.||Which combination of the following features will suffice to characterize an OS as a multi-programmed OS?
(a) More than one program may be loaded into main memory
at the same time for execution.
(b) If a program waits for certain events such as I/O,
another program is immediately scheduled for execution.
(c) If the execution of program terminates, another program
is immediately scheduled for execution.
|b.||a and b|
|c.||a and c|
|d.||a, b and c|
|Answer:a and b|