Computer Hardware

Bit: is the smallest unit of data in a computer.

 

 

 

 

 

 

 

 

 

 

 

Byte:is a unit of digital information that most commonly consists of eight bits.

 

 

 

 

 

 

 

 

 

 

 

Kilobyte:is a multiple of the unit byte for digital information. The International System of Units (SI) defines the prefix kilo as 1000 (103); therefore one kilobyte is 1000 bytes.

 

 

 

 

 

 

 

 

 

 

Megabyte:is a multiple of the unit byte for digital information. Its recommended unit symbol is MB, but sometimesMByte is used.

 

 

 

 

 

 

 

 

 

Gigabyte:is a unit of computer storage is the symbol GB are one billion bytes

 

 

 

 

 

 

 

 

 

 

Terrabyte:is a multiple of the unit byte for digital information. The prefix tera represents the fourth power of 1000, and means 1012 in the International System of Units (SI), and therefore one terabyte is one trillion (short scale) bytes. The unit symbol for the terabyte is TB.