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Weekend Revision (Chapter 3 - Paper 1)

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Total cards: 12•Content version: v3•Public deck•Updated: 8/1/2026

Card preview (12)

#1
Front (Question)

How many bits does ASCII have?

Back (Answer)

7 Bits and 128 Characters.

#2
Front (Question)

How many bits does extended ASCII have?

Back (Answer)

8 bits, 256 bits

#3
Front (Question)

How many bits does unicode have?

Back (Answer)

16 Bits, 65536 characters,

#4
Front (Question)

What are Bitmaps made up of?

Back (Answer)

Different coloured squares.

#5
Front (Question)

What do vectors store?

Back (Answer)

Mathematics required to draw a shape.

#6
Front (Question)

What is metadata?

Back (Answer)

Data about data, width, height, author etc.

#7
Front (Question)

Is sound discreet or continuous?

Back (Answer)

Analog - continuous value.

#8
Front (Question)

What is the sample rate?

Back (Answer)

How often the amplitude of a sound wave is recorded.

#9
Front (Question)

What will happen to the sound the more often the sample is recorded?

Back (Answer)

The playback will sound smoother.

#10
Front (Question)

What is the bit depth?

Back (Answer)

How many different gradations of amplitude can be represented in a digital waveform.

#11
Front (Question)

What does compression do?

Back (Answer)

Reduces the size of the file so it takes up less space.

#12
Front (Question)

What should be compressed in lossless form?

Back (Answer)

Text files and executable files.