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Worksheets

ch-1 class 9th

Total questions: 20

Worksheet time: 12mins

Name
Class
Date
1.

In Computers, what is the smallest and basic unit of information storage?

a)

Bit

b)

Byte

c)

Newton

d)

Mega byte

2.

Arrange the following devices in ascending order of the speed: A. RAM B. Hard disk C. Cache D. Floppy

a)

ABDC

b)

ABDC

c)

DBAC

d)

BADC

3.

where are programs and data to be used by the computer available?

a)

out put

b)

processing unit

c)

input

d)

storage

4.

'Blue tooth' technology allows -

a)

Landline phone to mobile phone communication

b)

Signal transmission on mobile phones only

c)

Wireless communication between equipments

d)

Satellite television communication

5.

One byte consists of

a)

four bits

b)

one bit

c)

ten bit

d)

eight bits

6.

Q. 1024 bytes equals:

a)

1 1 KB

b)

2 2 MB

c)

3 1 GB

d)

4 1TB

7.

It involves keeping track of all files

a)

Process Management

b)

Memory Management

c)

File Management

8.

Latest version of windows operating system –

a)

Windows 8

b)

Windows 8.1

c)

Windows 10

9.

What is computer memory?

a)

Computer memory is a type of keyboard

b)

Computer memory is a type of monitor

c)

Computer memory is a physical device that stores data and instructions for the CPU to access quickly.

d)

Computer memory is a type of printer

10.

Differentiate between primary memory and secondary memory.

a)

Primary memory is non-volatile and directly accessible by the CPU, while secondary memory is volatile and used for long-term storage.

b)

Primary memory is volatile and directly accessible by the CPU, while secondary memory is non-volatile and used for long-term storage.

c)

Primary memory is non-volatile and used for short-term storage, while secondary memory is volatile and used for long-term storage.

d)

Primary memory is volatile and used for long-term storage, while secondary memory is non-volatile and directly accessible by the CPU.

11.

Convert 1 GB to MB.

a)

1000 MB

b)

2048 MB

c)

512 MB

d)

1024 MB

12.

Which memory type is non-volatile? A) RAM B) ROM C) Cache D) Register

a)

D) Register

b)

A) RAM

c)

C) Cache

d)

B) ROM

13.

Name the primary memory component that stores data currently being processed by the CPU.

a)

Hard Drive

b)

Cache

c)

RAM

d)

ROM

14.

What is the smallest memory unit? A) Byte B) Kilobyte C) Bit D) Megabyte

a)

B) Gigabyte

b)

A) Megabyte

c)

D) Terabyte

d)

C) Bit

15.

Check all the examples of Input Units.

a)

Keyboard

b)

Microphone

c)

Speakers

d)

Mouse

16.

Check all the characteristics of computers.

a)

Speed.

b)

Accuracy.

c)

Reliability.

d)

Versatility.

e)

Store capacity.

17.

See the given Logo. Name the Web browser ?

a)

Mozilla Firefox

b)

Internet Explorer

c)

Opera Mini

d)

Google Chrome

18.

The ________memory is a high speed memory available inside CPU in order to speed up access to data and instructions stored in RAM memory.

a)

cash

b)

flash

c)

cache

d)

RAM

19.

Which of the following arrangement of Memory units (in Ascending order) is correct?

(a) TB, EB, PB, ZB

(b) TB, PB, ZB, EB

(c) EB, TB, PB, ZB

(d) TB, PB, EB, ZB

a)

a

b)

b

c)

c

d)

d

20.

SSD stands for

a)

Solid Status disk

b)

Secondary state drive

c)

solid state drive

d)

secondary state disk