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WorksheetsGCSE CS Revision
Total questions: 27
Worksheet time: 14mins
Memory used to make up for the difference in speed between two internal components.
Niche
Cash
Cache
Register
The part of the CPU that performs calculations and logic operations
Register
Control Unit
Clock
Arithmetic/logic unit (ALU)
What are the two elements of GCSE Computer Science called?
Principles of Computer Science
Application of Computaional Thinking
Problem Solving
Programming
The process by which a computer carries out the instructions of a stored program?
Execution
Running
Compiling
Interpreting
A type of error that occurs when a rule of the programming language code is broken?
Syntax error
Logic error
Run-time error
Program error
Which data type would be used in Python to store the value of pi to 2 decimal places?
Integer
Float
Boolean
String
Choose three properties of a variable
Has a data type
Has a value
Has a name
Has a length
Has a return value
In what way is a constant different from a variable?
It can not change its value during program execution
It can store more than one value
It can only be used in the global scope
Its name must be written in UPPER CASE
The binary codes representing each of the instructions in the in the instruction set.
Translator
Machine code
Source Code
Assembly language
What am I? A network that covers a relatively small geographical area, often a single site.
Local Area Network (LAN)
Wireless local area network (WLAN)
Wide Area Network
What am I? A local area network in which connected devices use high frequency radio waves to communicate.
Local Area Network (LAN)
Wireless Local Area Network (WLAN)
Wide Area Network (WAN)
True or False: Peer to Peer Networks are only used to distribute and share files illegally.
True
False
The protocol is used when sending email through the Internet. It details the format that messages are sent in, what commands email servers should understand and they should respond to them
POP3
IMAP
SMTP
True or False: The Internet is the largest wide area network
True
False
Give two benefits of telecommuting.
Some countries offer tax incentives to companies who use telecommuting, as it reduces traffic congestion and pollution.
They might only need to meet face-to-face once in a while, and of course, even for this they need not travel – they can ‘meet’ through video conferences using webcams
Fast communication
Better communication media
E-Waste stands for ...
Economic waste
Eco waste
Electronic waste
Ergonomic waste
E-Waste is sent to ...
Other planets
Land fills
Recycling plants
The manufacturers
Raw materials ....
are not use in digital devices
are an endless supply
rejuvenate themselves
will one day run out
Which statement is true?
To stop websites going down data centres tend to have energy draining generators (in case of power cuts) and cooling systems running on full capacity at all times, leading them to waste around 75% of the electricity they pull of the grid!
To stop websites going down data centres tend to have energy draining generators (in case of power cuts) and cooling systems running on full capacity at all times, leading them to waste around 90% of the electricity they pull of the grid!
To stop websites going down data centres tend to have energy draining generators (in case of power cuts) and cooling systems running on full capacity at all times, leading them to waste around 40% of the electricity they pull of the grid!
To stop websites going down data centres tend to have energy draining generators (in case of power cuts) and cooling systems running on full capacity at all times, leading them to waste around 60% of the electricity they pull of the grid!
How many unique values can you represent using 4 bits in binary?
16
15
8
7
What do you get If you do a binary shift of 3 places right to this binary number: 10001110?
0001 0001
10001
10010001
10001110
What does the ALU do?
Performs mathematical calculations
Stores the address of the data to be fetched from RAM
Stores the address of the next instruction to be fetched
Stores the result of calculations
Which part of the CPU performs logical operations?
MDR
MAR
PC
ALU
How many bits are in a nibble?
1
4
16
1024
Which kind of secondary storage are CDs and DVDs?
Magnetic
Optical
Flash
Which kind of secondary storage is a USB memory stick?
Magnetic
Optical
Flash
What is an IP address?
A) A unique identifier for a computer or device on a network
B) A type of encryption used to secure data
C) A measure of the speed of a network
D) A type of software used for network management
