Data storage Flashcards
1
Q
What is analogue data?
A
A device or system that represents changing values as continuously variable physical quantities. eg. a clock - the hands move around the face.
2
Q
What type of data do computers work with?
A
Computers can’t work with analogue data. They use digital data instead.
3
Q
What does digital data do?
A
Breaks information up into separate parts called binary digits.
4
Q
A bit is…
A
1 or 0 bits
5
Q
A nibble is…
A
4 bits
6
Q
A byte is…
A
8 bits
7
Q
A kilobyte (KB) is…
A
1,024 bytes
8
Q
A megabyte (MB) is…
A
1,024 KB
9
Q
A gigabyte (GB) is…
A
1,024 MB
10
Q
A terabyte (TB) is…
A
1,024 GB
11
Q
A petabyte (PB) is…
A
1,024 TB
12
Q
A single character would use?
A
One byte (8 bits)
13
Q
A one page document would be?
A
1 kilobyte
14
Q
A photo would be?
A
3 MB
15
Q
A song would be?
A
5 MB
