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Computer Science AQA A-Levels

This class was created by Brainscape user George White. Visit their profile to learn more about the creator.

By: George White
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Decks in this class (19)

Number systems
Definition of a natural number,
What represents a natural number,
Definition of an integer
14  cards
Number bases
Definition of a bit,
Definition of a byte,
What base is the decimal number s...
11  cards
Units of information
Kilo is 10 to the power of,
Mega is 10,
Giga is 10
18  cards
Hexadecimal
What does hexadecimal do,
What are hexadecimals commonly us...,
How many hexadecimal are needed t...
15  cards
Two’s compliment
What does a 1 at the start of a b...,
What does a 0,
What is 1 in binary 8 digits
10  cards
Character code system
What does ascii stand for,
What is ascii,
Define character code
15  cards
Fixed point form
What do fixed point numbers repre...,
What is the binary equivalent to ...,
Where is the binary point positioned
8  cards
Floating point
What is the floating point made u...,
What is the mantissa,
Advantages of floating points
4  cards
Normalisation
What is normalisation,
What is the precision in relation...,
Converting denary to binary float...
12  cards
Error detection & correction
What is majority voting,
What are advantages of majority v...,
What are disadvantages of majorit...
12  cards
Rounding Errors
What is an absolute error,
Will an absolute error always be ...,
When could you apply an absolute ...
7  cards
Sound Representation
What does adc stand for,
What does dac stand for,
What is sound
15  cards
Compression
What is lossless compression,
What is lossy compression,
When should lossy compression be ...
11  cards
Images
Bit mapped graphic,
What is a pixel,
What are bitmap graphics
11  cards
Encryption
Define cipher,
Define plaintext,
Define ciphertext
8  cards
Vernam Cipher
What is the only cipher proven to...,
What are the perfect conditions t...,
What are the steps of the vernam ...
3  cards
Hardware & Software
Define hardware,
Define software,
Define resource management
17  cards
Combining Logic Gates
What are adders,
Where are adders found,
What do half adders do
10  cards
Hardware Storage Devices
Secondary storage devices,
What is drum memory,
What is drum memory
17  cards

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Computer Science AQA A-Levels

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