Write very short answer of the following
questions.
a.
What do you mean by data?
Ans:
Data are the facts or symbols also known as unprocessed information collected
from various sources.
b.
What is the measurement unit of clock
speed of computer?
Ans:
The measurement unit of clock speed of computer is megahertz (MHz) or gigahertz
(GHz)
c.
Write any one use of computer in
medical field.
Ans:
Computer are used in medical field for diagnosing illness and monitoring the
condition of patients.
d.
Which unit of computer is used to
process data?
Ans: CPU is the part
of computer which process data.
e.
Is computer an electronic device?
Ans: Yes, computer
is an electronic device.
f.
What is GIGO?
Ans:
If the data and instruction given to the computer are correct, it will always
produce accurate result but sometimes it also produce undesirable result which
is due to wrong input it is known as GIGO.
g.
Why is computer called versatile
machine?
Ans:
A computer can perform different kinds of tasks one by one simultaneously so
computer is called versatile machine.
Q.8. Write short
answer of the following question.
a.
Define computer and draw the figure of
computer.
Ans: Computer is the electronic device that takes
data and instructions as an input, process them according to the given set of
instruction, stores and gives the meaningful information or result as output.
b.
How are computer used in education and
entertainment?
Ans: Computer
in Education
Computers are
widely used in the field of education. Teachers can explain difficult topics
more clearly and easily to their students. Using computer, student can search
books, can read books and magazines. Open universities are launching their
distance learning programs like CBT or CAI. Also many websites provide online
education so the computer is playing very important role in the field of education.
Computer
in Entertainment
Now a days
computer can be taken as a good means of entertainment. We can play games,
watch movies and listen music on the computer. 3D movies and cartoon are made
by adding special visual effects with the help of computer which makes us more
entertainment and looks like real.
c.
Explain the working system of a
computer with an example.
Ans:
Computer perform any tasks in three steps
1. Take data and
instruction as an Input
2. Process the
Input data
3. Gives the
output
eg:
|
2,5 |
2+5 |
OUTPUT 7 |
a.
List any four characteristics of a
computer.
Ans:
Four characteristics of computer are as follows:
i) High
speed ii) Accuracy iii) Diligence iv) versatility
b.
List any five application fields of a
computer.
Ans:
Application fields of computer are as follows:
i) Home ii) Education iii) Medicine and Health iv) Entertainment v) Business
c.
Why is computer called an information
processing machine?
Ans: Computer is
the electronic device that takes data and instructions as an input, process
them according to the given set of instruction, stores and gives the meaningful
information or result as output so computer is called an information processing
machine.
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