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Data Representation quiz games for A-Level Computer Science

18 live games for A-Level Computer Science, 256 questions. Preview every question free. Hosting A-Level Computer Science sets comes with a school package.

Data Representation for AQA A-Level Computer Science: 18 ready-made live quiz games, 256 questions in all.

The questions cover Two's complement, Hex to denary, Kilo and kibi, Binary to denary, Sign and magnitude and Overflow.

There are 13 practice sets and 5 quickfire rounds. Question types: 175 multiple choice, 73 true or false and 8 fill the gap.

Preview every set here. Hosting A-Level Computer Science sets comes with a school package, from £150 a year for the whole school.

The gamesEach set is a fixed list of questions. Open a preview to see a few of them.

Quickfire: Data Representation

A-level15 questions· Warm-up

Plays in 17 of 17 game modes, including Gold Rush, Big Catch and Speed Blitz.

Host with your school package
Preview 3 sample questions
  1. 1

    True or false?

    JPEG compression is lossless.
  2. 2

    True or false?

    MIDI stores actual sound waveforms.
  3. 3

    True or false?

    The SI prefix 'giga' means 10⁹.

+ 12 more questions in the game.

Practice

Data Representation: Signed Binary (Two's Complement)

A-level15 questions· Core

Plays in 17 of 17 game modes, including Gold Rush, Big Catch and Speed Blitz.

Host with your school package
Preview 3 sample questions
  1. 1

    True or false?

    Increasing the sample rate of a sound recording decreases the quality.
  2. 2

    True or false?

    A vector graphic stores image data as mathematical descriptions of shapes.
  3. 3

    How does increasing the **resolution** of a bitmap image affect it?

    More pixels, higher quality, smaller file sizeMore pixels, lower quality, smaller file sizeMore pixels, higher quality, larger file sizeFewer pixels, higher quality, larger file size

+ 12 more questions in the game.

Quickfire: Binary addition and shifts

A-level15 questions· Warm-up

Plays in 17 of 17 game modes, including Gold Rush, Big Catch and Speed Blitz.

Host with your school package
Preview 3 sample questions
  1. 1

    Which unsigned 8-bit addition causes an overflow?

    11001011 + 1010110110101111 + 0001111100110111 + 0110100000011111 + 11000100
  2. 2

    Which unsigned 8-bit addition causes an overflow?

    11100011 + 0110101101101011 + 1000100100000010 + 1110001100001001 + 00001001
  3. 3

    Which unsigned 8-bit addition causes an overflow?

    00011001 + 0111101110010101 + 1100010100001111 + 1101100010100110 + 00110001

+ 12 more questions in the game.

Practice

Data Representation: Logical shifts

A-level13 questions· Core

Plays in 17 of 17 game modes, including Gold Rush, Big Catch and Speed Blitz.

Host with your school package
Preview 3 sample questions
  1. 1

    What is 01110011 after a logical right shift of 2 places?

    00011100001110011100110000001110
  2. 2

    What is 00001111 after a logical right shift of 1 place?

    00000011000111101000011100000111
  3. 3

    What is 11100110 after a logical left shift of 3 places?

    10011000001100000110000000011100

+ 10 more questions in the game.

Practice

Data Representation: Overflow

A-level15 questions· Core

Plays in 17 of 17 game modes, including Gold Rush, Big Catch and Speed Blitz.

Host with your school package
Preview 3 sample questions
  1. 1

    True or false?

    Adding the unsigned 8-bit numbers 01101010 and 11001101 causes an overflow.
  2. 2

    True or false?

    Adding the unsigned 8-bit numbers 10010011 and 01000001 causes an overflow.
  3. 3

    True or false?

    Adding the unsigned 8-bit numbers 10010100 and 10101001 causes an overflow.

+ 12 more questions in the game.

Practice

Data Representation: Two's complement arithmetic

A-level11 questions· Core

Plays in 17 of 17 game modes, including Gold Rush, Big Catch and Speed Blitz.

Host with your school package
Preview 3 sample questions
  1. 1

    In 8-bit two's complement, what is 01100010 + 11110111?

    01101011010110010101100010100111
  2. 2

    In 8-bit two's complement, what is 11000111 + 01011111?

    00100111110110100110100000100110
  3. 3

    In 8-bit two's complement, what is 00111010 + 00011110?

    01011000101010000001110001011001

+ 8 more questions in the game.

Quickfire: Binary numbers

A-level15 questions· Warm-up

Plays in 17 of 17 game modes, including Gold Rush, Big Catch and Speed Blitz.

Host with your school package
Preview 3 sample questions
  1. 1

    What is denary 88 in 8-bit binary?

    01010000010110000001101001011001
  2. 2

    What is denary 93 in 8-bit binary?

    01011001101110100101110101011110
  3. 3

    True or false?

    The binary number 10100111 is 167 in denary.

+ 12 more questions in the game.

Practice

Data Representation: Binary to denary

A-level15 questions· Core

Plays in 17 of 17 game modes, including Gold Rush, Big Catch and Speed Blitz.

Host with your school package
Preview 3 sample questions
  1. 1

    True or false?

    The binary number 0000 1010 1101 1011 is 2,779 in denary.
  2. 2

    True or false?

    The binary number 0000 1001 0000 0000 is 2,304 in denary.
  3. 3

    True or false?

    The binary number 0011 1011 0000 0000 is 15,104 in denary.

+ 12 more questions in the game.

Practice

Data Representation: Bits and values

A-level11 questions· Core

Plays in 17 of 17 game modes, including Gold Rush, Big Catch and Speed Blitz.

Host with your school package
Preview 3 sample questions
  1. 1

    How many different values can 13 bits represent?

    268,19216,3848,191
  2. 2

    What is the largest denary number 9 bits can hold?

    51125617512
  3. 3

    What is the largest denary number 11 bits can hold?

    2,047212,0481,024

+ 8 more questions in the game.

Practice

Data Representation: Sign and magnitude

A-level15 questions· Core

Plays in 17 of 17 game modes, including Gold Rush, Big Catch and Speed Blitz.

Host with your school package
Preview 3 sample questions
  1. 1

    What is -41 in 8-bit sign and magnitude?

    00101001101010011010101011010111
  2. 2

    What is -85 in 8-bit sign and magnitude?

    11010101010101011101011010101011
  3. 3

    What is -4 in 8-bit sign and magnitude?

    10000101100001000000010011111100

+ 12 more questions in the game.

Practice

Data Representation: Two's complement

A-level15 questions· Core

Plays in 17 of 17 game modes, including Gold Rush, Big Catch and Speed Blitz.

Host with your school package
Preview 3 sample questions
  1. 1

    True or false?

    -61 in 8-bit two's complement is 11000011.
  2. 2

    True or false?

    -89 in 8-bit two's complement is 11011001.
  3. 3

    True or false?

    -110 in 8-bit two's complement is 11101110.

+ 12 more questions in the game.

Practice

Data Representation: Two's complement, set 2

A-level15 questions· Core

Plays in 17 of 17 game modes, including Gold Rush, Big Catch and Speed Blitz.

Host with your school package
Preview 3 sample questions
  1. 1

    What is -37 in 8-bit two's complement?

    00100101110110101010010111011011
  2. 2

    What is -63 in 8-bit two's complement?

    11000001001111111100000010111111
  3. 3

    What is -43 in 8-bit two's complement?

    00101011110101001101010110101011

+ 12 more questions in the game.

Quickfire: Hexadecimal

A-level15 questions· Warm-up

Plays in 17 of 17 game modes, including Gold Rush, Big Catch and Speed Blitz.

Host with your school package
Preview 3 sample questions
  1. 1

    True or false?

    Hexadecimal AE is 174 in denary.
  2. 2

    True or false?

    Hexadecimal D5 is 213 in denary.
  3. 3

    True or false?

    Hexadecimal 5A is 90 in denary.

+ 12 more questions in the game.

Practice

Data Representation: Denary to hex

A-level15 questions· Core

Plays in 17 of 17 game modes, including Gold Rush, Big Catch and Speed Blitz.

Host with your school package
Preview 3 sample questions
  1. 1

    What is denary 84 in hexadecimal?

    53544555
  2. 2

    What is denary 157 in hexadecimal?

    9C9DD99E
  3. 3

    What is denary 17 in hexadecimal?

    11122110

+ 12 more questions in the game.

Practice

Data Representation: Hex and binary

A-level15 questions· Core

Plays in 17 of 17 game modes, including Gold Rush, Big Catch and Speed Blitz.

Host with your school package
Preview 3 sample questions
  1. 1

    What is binary 0010 0010 in hexadecimal?

    22322334
  2. 2

    What is binary 1010 0001 in hexadecimal?

    A1A2B11A
  3. 3

    What is binary 1111 1100 in hexadecimal?

    FCCFFD0C

+ 12 more questions in the game.

Practice

Data Representation: Hex to denary

A-level11 questions· Core

Plays in 17 of 17 game modes, including Gold Rush, Big Catch and Speed Blitz.

Host with your school package
Preview 3 sample questions
  1. 1

    What is hexadecimal 55 in denary?

    101558569
  2. 2

    What is hexadecimal 94 in denary?

    7394148164
  3. 3

    What is hexadecimal DA in denary?

    234218173140

+ 8 more questions in the game.

Quickfire: Units of data

A-level15 questions· Warm-up

Plays in 17 of 17 game modes, including Gold Rush, Big Catch and Speed Blitz.

Host with your school package
Preview 3 sample questions
  1. 1

    How many bytes is 312 bits?

    2,4961567839
  2. 2

    How many bytes is 160 bits?

    1,280208040
  3. 3

    True or false?

    A kilobyte is bigger than a megabyte.

+ 12 more questions in the game.

Practice

Data Representation: Kilo and kibi

A-level15 questions· Core

Plays in 17 of 17 game modes, including Gold Rush, Big Catch and Speed Blitz.

Host with your school package
Preview 3 sample questions
  1. 1

    How many KiB are in 10 MiB?

    81,92010,24010,00010,485,760
  2. 2

    How many KiB are in 3 MiB?

    24,5763,0723,145,7283,000
  3. 3

    How many MB are in 3 GB?

    24,0003,0003,000,0003,072

+ 12 more questions in the game.

How hosting works

  1. Pick a set and a game mode. The questions stay the same; the game changes.
  2. Put the join code on the board. Pupils join at subjecthub.co.uk/play on a phone or laptop. They need no account.
  3. Play for 1 to 7 minutes. You choose the length before you start.

Preview every set free. Hosting these sets comes with a school package. See pricing

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