Much smaller, much faster. Picture Memory Memory is a big sequence of storage locations called memory cells. Each cell is identified by it's position in the sequence. The positions are numbered, and the position of a particular cell is its address . The data stored in a particular memory cell is its contents .
Memory can store data or program instructions.
Each memory cell is some number of bytes . A byte is the amount of storage required to store one character, i.e. 'S'. Bytes are composed of smaller units called bits . Bits are binary digits, and can be either 0 or 1. Storing means placing some information in a memory location.