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Year 8 - Computer Systems

Total questions: 58

Worksheet time: 29mins

Name
Class
Date
1.

Computers use logic gates to transform the 1s and 0s from input wires. A logic gate accepts inputs and then outputs a result based on their state

a)

Fasle

b)

True

2.

Which logic gate is this?

a)

AND

b)

OR

c)

NOT

d)

NAND

3.

Which logic gate is this?

a)

OR

b)

AND

c)

NOT

d)

NOR

4.

 

What will this gate's output be?

a)

0

b)

1

5.

What will this gate's output be?

a)

0

b)

1

6.

What type of logic gate is this table showing?

a)

OR

b)

AND

c)

NOT

7.

What type of logic gate is this table showing?

a)

NOT

b)

OR

c)

AND

d)

NAND

8.

Which logic gate is this?

a)

OR

b)

AND

c)

NOT

d)

NOR

9.

What will this gate's output be?

a)

1

b)

0

10.

 

How many different combinations of 1 and 0 are possible with 2 bits?

a)

1

b)

2

c)

3

d)

4

11.

. 

How many different combinations of 1 and 0 are possible with 1 bit?

a)

1

b)

2

c)

3

d)

4

12.

How many different combinations of 1 and 0 are possible with 3 bits?

a)

4

b)

5

c)

6

d)

7

e)

8

13.

A=1

B=0

What is the value of Z?

a)

1

b)

0

14.

What will the circuit's output be?

a)

1

b)

0

15.

The simplest gate is the ......... gate, also known as an inverter. It accepts a single input and outputs the opposite value

a)

NOT

b)

AND

c)

NAND

d)

AND

16.

Which of the following is computer hardware?

a)

Monitor

b)

Scanner

c)

Keyboard

d)

All of the above

17.

Which of the following is an input device?

a)

A computer monitor

b)

A mouse

c)

A CD ROM

d)

A printer

18.

Which of the following is an output device?

a)

A hard disk

b)

A CD ROM

c)

A computer monitor

d)

A keyboard

19.

Q4. Which of the following is a storage device?

a)

A CD ROM

b)

A laser printer

c)

RAM (Random Access Memory)

d)

A scanner

20.

Q5. Which of the following is an input device?

a)

A speaker

b)

A speed camera

c)

A flash drive

d)

An inkjet printer

21.

Which of the following is an output device?

a)

A laser printer

b)

A scanner

c)

A joystick

d)

A lift button

22.

Which of the following is computer software?

a)

Touch screen

b)

MS Windows

c)

Printer

d)

Floppy disk

23.

A CD ROM is

a)

a magnetic storage device read by magnetised read-write head

b)

a magnetic storage device read by magnetised read-write head

c)

a magnetic storage device read by a laser beam

d)

an optical storage device read by a laser beam

24.

What would be a suitable device to transfer 12 photos from one PC to another?

a)

A memory stick

b)

A CD ROM

c)

A scanner

d)

A printer

25.

What is the purpose of the CPU?

a)

To create data

b)

To store data

c)

To process data

d)

To delete data

26.

What does the control unit do?

a)

It holds the data and programs that the CPU currently needs

b)

It controls and monitors communications between the computer and any hardware attached

c)

It carries out calculations and logic operations

d)

It controls and monitors communications between the computer and external services

27.

How many instructions can a CPU process at a time?

a)

one

b)

two

c)

many

d)

it does not process instructions

28.

What is clock speed measured in?

a)

Cycles per minute

b)

Cycles per second

c)

Cycles per hour

d)

Cycles per 2 hours

29.

RAM stands

a)

Random Access Memory

b)

Random Account Memory

c)

Random Allowance Memory

d)

Random Access Mirrors

30.

ROM stands

a)

Read on-access Memory

b)

Read Only Memory

c)

Read on Memory

d)

Read on and off Memory

31.

RAM is a fast temporary type of memory in which programs, applications and data are stored.

a)

True

b)

False

32.

RAM is sometimes called primary memory.

a)

true

b)

false

33.

What number system do computers use?

a)

Binary

b)

Decimal

c)

ASCII

d)

Denary

34.

The binary number 1010, converted to denary (decimal) is

a)

2

b)

3

c)

10

d)

18

35.

The binary number 0001 0001, converted to denary (decimal) is:

a)

3

b)

17

c)

101

d)

10, 001

36.

Can you pick the most suitable storage device for Mark, who is 35 years old, Graphic Designer Job, needs unlimited storage to store all his graphic design work and needs to be able to access it as and when required.

a)

Cloud Storage

b)

USB / FLASH DRIVE

c)

Optical drive

d)

SD Card

37.

What type of device is this? (Printer)

a)

Input

b)

Output

38.

What type of device is this? (Remote Control)

a)

Input

b)

Output

39.

What type of device is this? (Projector)

a)

Input

b)

Output

40.

What type of device is this? (Headphones)

a)

Input

b)

Output

41.

What type of device is this? (Speakers)

a)

Input

b)

Output

42.

What type of device is this? (Scanner)

a)

Input

b)

Output

43.

What type of device is this? (Microphone)

a)

Input

b)

Output

44.

What type of device is this? (Mouse)

a)

Input

b)

Output

45.

What type of device is this? (Barcode Reader)

a)

Input

b)

Output

46.

What type of device is this? (Monitor)

a)

Input

b)

Output

47.
Input devices allow us to send information to the CPU (Central Processing Unit) to tell the computer what to do.
a)
True
b)
False
48.
Output devices receive information from the CPU (Central Processing Unit), then translate it into sounds or images that we can understand.
a)
True
b)
False
49.

What type of device is this? (Webcam)

a)

Input

b)

Output

50.

What type of device is this? (Smartphone screen)

a)

Input

b)

Output

c)

Input and Output

51.

What type of device is this? (Interactive whiteboard)

a)

Input

b)

Output

c)

Input and Output

52.
Which of these is not an input device?
a)
Scanner
b)
Screen
c)
Microphone
d)
Keyboard
53.
What type of device is this? CD / DVD / Blu-Ray
a)
Input
b)
Output
c)
Storage
54.
Wires are output devices because they come OUT of a computer
a)
True
b)
False
55.

What type of device is this? (Digital camera)

a)

Input

b)

Output

56.
What is the most suitable input device for inputting a short report?
a)
Mouse
b)
Scanner
c)
Keyboard
d)
None of the above
57.
What is the most suitable input device for highlighting or selecting an object on the screen?
a)
Mouse
b)
Joystick
c)
Keyboard
d)
None of the above
58.
Which of these would you use to digitise a paper photograph?
a)
Scanner
b)
 Joystick
c)
Touch screen
d)
None of the above

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