Comp theory: Data

how many bytes in a kibibyte

1024

Why do computers use binary

Computers use circuits which can be on or off, represented by 1 and 0

Computers operate using logic gates which only have two states, true or false

why do overflow errors occur

when the result is greater than the max num bytes e.g. result is greater than 255 an cannot be stored in one byte

why are colour codes given in hexadecimal rather than binary

less chance of making an error when inputting hex

easier to read/remember than binary

limitation of the ASCII character set

uses only 7 bits

so can only represent 128 characters

not enough to represent characters in other alphabets e.g.(chinese/japanese)