part 2 Flashcards
how many bits in ASCII
8
how many characters can ascii represent
256
what is a character set
all of the characters that are interpreted by a computer
what is unicode
32 bits and 4 billion characters
what is an overflow error
extra digit when adding
can cause the program to crash or be ignored
how to divide a binary number
shift to the right
how to multiple a binary number
shift to the left
what is metadate
A set of instructions used to help the computer construct an image.
what is a pixel
The smallest element of an image
what is colour depth
This is the number of bits used to store the colour for each pixel
what is a bitmap
A picture which is represented with each pixel being assigned to one colour
what is a vector
computer images created using a sequence of commands or mathematical statements
what is resolution
This is the number of pixels in an image
what is the file size of an image affected by
colour depth and resolution
how to work out the file size
resolution x colour depth
