CLASS-IX
CHAPTER-COMPUTER SYSTEM
Q1: Fill in
the blanks:
a) One of the main job of computer is to
process _________into ___________.
b) A person who communicates with a
computer or uses the information it generates, is called ___________.
c) The electric, electronic and
mechanical equipment that makes up a computer is called ___________.
d) A collection of related instructions
ogranised for a common purpose is
referred to as ____________.
e) Computers in ___________ is used for
making books, magazines,newspapers,music,film and video.
f) A ___________ contains keys for press
to enter data into instructions.
g) A ___________allows you to speak into
the computer.
h) ___________devices hold data,
instructions and information for future use.
i)
A
___________ provides much greater storage capacity than a USB flash drive.
j)
The
motherboard is the main ___________of
the system unit.
k) A ___________processor is a chip that
contains two separate processor cores.
Q2. State
true or false.
a) A computer is an electronic machine
that works automatically by own.
b) Data is a collection of unorganized
facts,like words,numbers,images and sound.
c) The processing speed of computer is
very slow.
d) A keyboard contains keys you press to
enter data into the computer.
e) Storage is not an efficient feature
of computer.
f) A dual core processor is a chip that
contains two separate processor cores.
g) The motherboard is the main circuit
board of a micro computer.
Q3. Answer
the following questions.
a) Define computers.
b) Mention two areas where computer is
used.
c) Name any two input devices.
d) Name any two output devices.
e) Which part of computer is called the
brain of computer?
f) Name the two components of CPU.
g) Define the following terms:
I.
Information
II.
Data
III.
Output
Devices
IV.
Motherboard
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