What is the speed of hard disks drive today?
a) 4000 rpm
b) 7100 rpm
c) 4200 rpm
d) 7200 rpm
Where did information is read-and-write in hard disks drives?
a) platters
b) track
c) sectors
d) none of these
How many electric motors are in a hard disk drive?
a) one
b) two
c) three
d) four
The concentric circles of hard disk drives are called…….
a) tracks
b) sectors
c) platters
The further divisions of the tracks are called……
a) tracks
b) sectors
c) platters
d) none of these
Optical disks encode binary data in the form of……
a) pits
b) land
c) both a & b
d) none of these
Explanation: pits: binary value 0 for off, land: binary value 1 for on
