How many classes of interrupts?
a) one
b) two
c) three
d) four
Explanation: program, timer, i/o
How many categories of I/O devices?
a) one
b) two
c) three
d) four
Explanation: block devices, character devices
A device that stores information in fix-size blocks is called…..
a) block device
b) character device
c) both a & b
d) none of these
What is the range of block sizes?
a) 128-256 bytes
b) 128-512 bytes
c) 128-1024 bytes
d) 128-20148 bytes
What does RAM stand for?
a) random access memory
b) read access memory
c) right access memory
d) all of these
What does ROM stand for?
a) read-only memory
b) random-only memory
c) reserve-only memory
d) all of these
