2.1.1: understand that computers use binary to represent data (numbers, text, sound, graphics) and program instructions and be able to determine the maximum number of states that can be represented by a binary pattern of a given length
| Keyword | Definition |
|---|---|
| data | values which can represent numbers, text, sound or graphics |
| graphics | data where each value represents the colour of an individual pixel |
| number of bits | how many binary 0s and 1s are needed to store a value |
| number of states | the difference between the largest and smallest value which can be stored |
| program instruction | value which represents part of an algorithm which a computer can execute |
| sound | data where each value represents the amplitude of an audio signal at a particular moment in time |
| text | data where each value represents a different character |
