Hello students here I am writing about computer storage devices. Computer storage also referred as computer memory is actually an electronic file in which instructions and data are placed until needed.
Computer storage is divided into two classes.
Main storage or main memorySecondary storage or secondary memory
The major reason for the distinction between main and auxiliary storage is the cost in relation to performance and capacity.
Main memory provides very fast performance or it is directly accessible by the CPU but is much more costly per unit of capacity than the auxiliary storage devices. Auxiliary storage provides maximum capacity for large data files.
The basic unit of a digital computer is a bit, which stands for binary digit. A bit is binary number and has value 1 or 0 representing ON or OFF state. In microprocessor, bits are grouped into set of eight, called a byte.