Information is stored on a computer in digital form. Streams or blocks of data, like files, email, and web pages all appear to a computer as collections of ones and zeros. In the same way that you can measure the speed of cars or airplanes, you can measure the speed at which a particular piece of technology can transfer information. A bit is either 0 or 1, with 0 meaning off and 1 meaning on. The term binary means a choice between two possible options-0 and 1.
Computers combine collections of bits into more complex forms in order to represent data.
A byte usually represents a single character, such as a digit or a letter of the alphabet. The number of bits transferred per second. Thousands of bits transferred per second. A typical modem can transfer 33.6Kbps, or 33,600 bits per second. Millions of bits transferred per second.