A **BIT**, is a **BINARY DIGIT**.A bit can be a zero or a 1.
A binary number made of eight bits, such as 11001010 is known as a **BYTE**.
Four bits, such as 1101 is known as a **NIBBLE** (half a byte and a joke).
Sixteen bits numbers are a **WORD**.
Thirty two bits ones are a **LONG WORD**.
Sixty four bits numbers are a **VERY LONG WORD**.
These numbers can be stored in **REGISTERS** inside chips (integrated circuits).
1k in binary systems is 1024.
These collections of bits can represent binary numbers. They can also represent decimal or other number systems.
The **ASCII** system uses them to represent the letters of the alphabet and punctuation. The
**ASCII TABLE** gives the binary equivalents of the alphabet.
All this information is called **DATA**.
Numbers in microprocessor systems are often expressed in hexadecimal.
The microprocessor is also called the **CENTRAL PROCESSING UNIT (CPU)**.
There are very many cpu's and one of the most common is the 6502. |