Storage Device

Storage Device

A storage device is any computing hardware that is used for storing, porting and extracting data files and objects. It can hold and store information both temporarily and permanently, and can be internal or external to a computer, server or any similar computing device.

A storage device may also be known as a storage medium

There are two types of storage devices.

1. Primary Storage Devices.

a. ROM

b. RAM

2. Secondary Storage Devices.

a. HDD

b. CD ROM

c. USB Drive.

Unit of storage.

Each alpha numeric character represented in a storage location as a combination of binary digits (0, 1) of bits to from a byte.

7/8 bits      - 1 byte (1 character)

1024 bytes - 1 kilobyte

1024 kb -     1 Mega bytes

1024 MB -   1Giga Bytes

1024 GB -  1 Tera bytes

1024 TB -    1 Peta byte

1024 PB -   1Exabyte

1024 EB -   1 Zettabyte

1024 ZB  -  1 Yottabyte

ROM

Short for Read-Only Memory, ROM is a type of "built-in" memory that is used with computers and other electronic devices. As the name indicates, data stored in ROM may only be read; it is either modified with extreme difficulty or not at all. ROM is mostly used for updates. A simple example of ROM is the cartridge used with video game; which allows one system to run multiple games. Another example of ROM is, which is a programmable ROM used for the, as shown in the picture.