1.1.1 Binary Systems Flashcards
Data representation
1
Q
Define data:
A
Numbers, symbols or alphanumeric characters in their raw format before processing
2
Q
Define analogue: (in terms of data)
A
It is the smoothest stream of data that our senses process on a daily basis such as a sound wave
3
Q
Define digital: (in terms of data)
A
Data wave represented as 1s and 0s that a computer can process
4
Q
Why do computers use binary?
A
A computer can be in only two states as it uses electricity therefore only 1s and 0s can be used to process digital data
5
Q
Convert the binary 1010 into denary:
A
10
6
Q
Convert the denary 20 into binary:
A
101000
7
Q
How many bits are the in 1 byte?
A
8 bits
8
Q
Name the units of measurement and give their abbreviation and value:
A
- Byte: B 8 bits
- Kilobyte: kB 1024 Bytes
- Megabyte: mB 1024 Kilobytes
- Gigabyte: GB 1024 Megabytes
- Terabyte: TB 1024 Gigabytes
9
Q
Define register: (computer term)
A
Small piece of memory where data can be held
