31. Information can be sent over long distances in the form of:
a) Electrical signals through wires
b) Light signals through optical fibres
c) Radio waves through air
d) Any combination of these three.
e) None of these
32. Information can be stored in:
a) Audio and video cassettes
b) Floppy and compact discs
c) Hard disks
d) Laser and optical disks
e) All of these four
33.Computers can:
a) Add and subtract information only.
b) Add subtract and sort information only.
c) Add subtract sort and classify information.
d) Add and subtract but cannot sort information.
e) Add subtract and sort but cannot classify information.
34.IBM stands for:
a) International Business Machines
b) International Big Machines
c) Interrelated Business Machines
d) Interrelated Big Machines
e) None of these.