Bit and Byte

Bit - smallest unit of data that a computer can use. It can be use to represent two states of information, such as Yes or No.

Byte - can represent 256 states of information. 1 Byte is equal to 8 bits.

this is a chart of bytes to bits.

Fact:
To put it in some perspective, a Terabyte could hold about 3.6 million 300 Kilobyte images or maybe about 300 hours of good quality video. A Terabyte could hold 1,000 copies of the Encyclopedia Britannica. Ten Terabytes could hold the printed collection of the Library of Congress. 



source: Sit Tom's pdf. :)
/Kagat