WorksheetsSST Yr9 - NCCE - Computer Systems
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
Question 1:
Identify the following logic gate:
a)
A – OR
b)
B – NOT
c)
C – AND
d)
D – XOR
2.
Question 2:
Identify the following logic gate:
a)
A – NOT
b)
B – XOR
c)
C – OR
d)
D – AND
3.
Question 3:
What is the Boolean expression for this truth table?
a)
A: Z = A AND B
b)
B: Z = A AND NOT B
c)
C: Z = A OR B
d)
D: Z = A XOR B
4.
Question 4:
What is the Boolean expression for the following logic circuit?
a)
A: Z = A AND (NOT B)
b)
B: Z = A OR (NOT B)
c)
C: Z = (NOT A) AND B
d)
D: Z = (NOT A) OR B
5.
Question 5:
Identify the device that acts as a switch inside a computer?
a)
A: Resistor
b)
B: Transistor
c)
C: Processor
d)
D: Jumper
6.
Question 6:
Identify the correct truth table for an AND gate.
a)
A:
b)
B:
c)
C:
d)
D:
7.
Question 7:
What number base is binary?
a)
A: Base 10
b)
B: Base 2
c)
C: Base 16
d)
D: Base 32
8.
Question 8:
What is the name given to the component inside a computer that is often known as the ‘brain of the computer’?
a)
A: Processor
b)
B: Memory
c)
C: Hard Drive
d)
D: Power Supply
9.
Question 9:
What is the term given to the speed a computer fetches, decodes and executes an instruction?
a)
A: Cache speed
b)
B: Hard drive speed
c)
C: Clock speed
d)
D: RAM speed
10.
Question 10:
Jasmin is a wedding photographer who needs to store a large number of high-definition photographs on a portable media. Identify the most appropriate storage device for Jasmin to use
a)
A: SD Card
b)
B: DVD
c)
C: Internal hard disk drive
d)
D: Magnetic tape
11.
Question 11:
Which of the following devices has the highest storage capacity?
a)
A: CD
b)
B: DVD
c)
C: Blu Ray
d)
D: CD-R
12.
Question 12:
What type of user interface is shown?
a)
A: Graphical User Interface
b)
B: Menu Driven Interface
c)
C: Command Line Interface
d)
D: Natural Language Interface
13.
Question 13:
If a microprocessor has a speed of 1GHz, how many instructions per second can it complete?
a)
A: one hundred
b)
B: one thousand
c)
C: one million
d)
D: one billion
14.
Question 14:
A machine instruction has two parts. What are the names of these parts?
a)
A: operator and opcode
b)
B: data and command
c)
C: operator and operand
d)
D: command and decimal
15.
Question 15:
Which of the following is NOT a type of translator?
a)
A: Assembler
b)
B: Decomposer
c)
C: Compiler
d)
D: Interpreter
16.
Question 16:
Which of the following devices is NOT an input device?
a)
A: Tracker pad
b)
B: Mouse
c)
C: Monitor
d)
D: Keyboard
17.
Question 17:
Which of the following is both an input and an output device?
a)
A: A USB Flash Drive
b)
B: A Mouse
c)
C: A Touch Screen monitor
d)
D: A Graphics Tablet
18.
Question 18:
Ginny Needs to protect her computer from Malware, which of the following software should she install?
a)
A: SSH Client
b)
B: Firewall
c)
C: Antivirus
d)
D: Keylogger
19.
Question 19:
Which of the following is an example of utility software
a)
A: Spreadsheet
b)
B: Disk Defragmenter
c)
C: Photo Editor
d)
D: Text Editor
20.
Question 20:
Identify the purpose of the Motherboard
a)
A: Improves Graphics performance.
b)
B: Stores Information.
c)
C: Connects all the components of the PC.
d)
D: Allows the PC to use Virtual Memory.
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