Storage

Computer storage refers to the data stored in an electromagnetic form to be used by the processor. You can measure the amount of data stored on a computer just as you can measure the amount of ater in container, although measurement units are different, of course. The storage capacity defines the amount of data that can be stored on a storage device.

Computer Data

A computer stores a variety of data and information in its memory,including numbers (0-9), letters (A-Z) and symbols and other characters (#,{},. ‘ ~ ^). A computer uses the binary system to represent these characters. In a binary system, only two digits, 0 and 1, are used. The 0s and 1s in the binary system are known as bits (binary digits). A bit is the smallest unit of measurement of storage capacity. A set of eight bits is called a byte.

NOTE

Kilobytes, megabytes, gigabytes, terabytes are higher  units for mrasureing the capacity of a storage of a storage device.

8 bits                             = 1 byte

1024 bytes                    = 1 kilobyte(KB)

1024 KB                       = 1 megabyte (MB)

1024 MB                      = 1 gigabyte (GB)

 

1024 GB                       = 1 terabyte (TB)

Internet S

torage

Computers use two types of storage: external storage and internal storage. External storage is explained in the  next section. The internal  storage, also called primary storage is the main memory. It stores data and instructions for processing .it also stores the output data temporarily before it is sent to an appropriate output device. The act of retrieving existintg data from memory is called reading out or simiply reading. The process of storing data in memory is called reading  in or writing.

There are two types of internet storage:

1. Random Access Memory (RAM)

2. Read Only Memory (ROM).