Introduction to Computer Assignment Class 9

 1. Answer the following questions.

a) Define Computer and list its capabilities.

b) Write the limitations of computer.

c) What is GIGO?

d) Explain working principles of computer with block diagram.

e) List any four features of computer.

f) Why is computer called diligence machine?

g) Describe the use of computer in education field.

h) Mention any four uses of computer.

i) State different units of storage in computer.

2. State 'True' or 'False'.

a) Computer is an electrical machine which can perform a task.

b) Computer processes raw data according to the given set of instructions.

c) The speed of computer is measured in MegaHertz (MHz).

d) A large amount of data is stored in secondary storage.

e) Computer is a versatile device which has the capability of performing

different types of tasks.

f) The combination of 1025 Megabyte is equal to one Gigabyte.

3. Match the following.

Group 'A'                     Group 'B'

i) Microsecond             a) Raw facts or figures

ii) Data                         b) Application of computer

iii) GIGO                     c) One millionth of second

iv) Education               d) Error due to wrong input

                                     e) RAM

4. Choose the best answer from the list.

a. The measurement of second equal to one-millionth of a second is called...

 i) millisecond     ii) microsecond     iii) nanosecond     iv) picosecond

b. When the input is wrong, then the output will also be wrong, it is termed

as

 i) FIFO     ii) LIFO     iii) GIGO     iv) None of above

c. How many kilobytes make one megabyte?

 i) 1030     ii) 1000     iii) 1048     iv) 1024

d. Repeatedly working capability of computer is known as

 i) storage     ii) speed     iii) diligence     iv) versatility

5. Write the full form of.

i) GIGO     ii) GB     iii) TB     iv) PB     v) EB

vi) KB     vii) AI     viii) MHz     ix) GHz     x) ATM

xi) ECG     xii) RAM     xiii) CT scan