Science Computer - Chapter 1.2 : Number System and Representation
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How does a computer represent data?
A computer represent data by using two unique binary digits 1 and 0 to represent the two states on and off.
Why computer only can recognizes two unique binary digits ?
Computer only recognize two discrete states : on and off. It is because computers are electronic devices powered by electricity.
What is Bit?
The smallest unit of data the computer can process. The number system has two unique digits, 1 (on) or 0 (off) Represents an electrical state (on or off)
What is Byte?
● A group of 8 bits (ex:11110000) ● Represents a single character such as a digit, uppercase and lowercase letter of alphabet, a punctuation mark or other keyboard symbols (* @ $)