Units - Paper 1 Flashcards
1
Q
Why do computers store data in a binary format?
A
Binary can be simply physically represented as on or off.
2
Q
Define bit
A
A bit is a single binary digit.
3
Q
Define nibble
A
A nibble is 4 bits.
4
Q
Define byte
A
A byte is 8 bits.
5
Q
Define analogue data
A
Analogue data is a real-life signal that can vary greatly in value.
Examples include sound waves, pressure and temperature.
6
Q
Define digital data
A
Digital data is binary data which represents analogue data.
7
Q
How can we convert between analogue and digital data?
A
ADCs (Analogue-to-Digital Converter)
DACs (Digital-to-Analogue Converter)
