**What is Binary Number System?**

The word binary is derived from latin word “binarius”. The meaning of binary is two.

Total two symbols are used in binary number system.

These two symbols are;

**0** and **1**

O represent off and 1 represents on.

Binary number system is also a positional number system. Positional number system means that position of bits is very important.

For example;

1101 **≠ **1011

Mostly digital computers use the binary number system.

Some important terminologies of binary number system are discussed below;

Bit

Nibble

Byte

Kilo byte

Mega byte

Giga byte etc.

### What is Bit?

Bit is a term used for binary digit

### What is Nibble?

Nibble is a term used for group of 4 bits.

### What is Byte?

Byte is a term used for group of 8 bits.

### What is Kilo byte?

Kilobyte is a term used for group of thousand bytes.

### What is Mega Byte?

Mega byte is a term used for group of million bytes.

### What is Giga Byte?

Gigabyte is a term used for group of billion bytes.

### What are advantage of binary number system?

- Binary number system is simple to implement.
- Binary number system can be used to build logic gates. For example AND, OR, NOT, NAND, NOR and XOR gates can be implement.
- Binary number system is extremely robust in transmission.
- Binary number system is loving number system of hardware and machines. Machines can easily understand binary number system.

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