4e: Measure the size of a representation as the number of symbols that it contains.
|base||the number of different symbols available to use in each place in a sequence|
|base 10||a representation that has 10 different symbols (e.g. writing numbers in decimal with the numbers 0 - 9)|
|base 16||a representation that has 16 different symbols (e.g. describing colours in hexadecimal with 0-9 and A-F)|
|base 2||a representation that has two different symbols (e.g. binary with 0 and 1)|
|base 26||a representation that has 26 different symbols (e.g. writing messages using the letters A-Z)|
|base 64||a representation that has 64 different symbols (e.g. describing the contents of files using A-Z, a-z, 0-9 and some additional punctuation symbols)|
|message length||the number of symbols needed in a sequence to represent a message|