Operating System (OS)
Which of the following are loaded into main memory when the computer is booted?

internal command instructions
None of these
word processing instructions
utility programs
external command instructions

ANSWER DOWNLOAD EXAMIANS APP

Operating System (OS)
The CPU, after receiving an interrupt from an I/O device

branches off to the interrupt service routine after completion of the current instruction
hands over control of address bus and data bus to the interrupting device
None of these
halts for a predetermined time
branches off to the interrupt service routine immediately

ANSWER DOWNLOAD EXAMIANS APP

Operating System (OS)
Virtual Memory

allows multiple programs to reside in separate areas of core at the time.
consists of those addresses that may be generated by a processor during execution of a computation.
is a method of allocating processor time.
None of these
is a method of memory allocation by which the program is subdivided into equal portions, or pages and core is subdivided into equal portions or blocks.

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Operating System (OS)