# What is Memory Units?

Hello friends, in today’s article we are going to talk about memory units.

Today we will learn in detail about what is memory units. And what is its use? So without any time let’s first understand what is memory units.

## What are Memory Units?

Just as we have seconds, minutes, and hours to measure time, there are units like inches, centimeters, meters, and feet to measure any length and there are liters to measure water, in the same way in the computer world, To measure the storage capacity of computer memory we have memory units.

Memory units are used to describe the size of data files stored in computer memory. We use it to tell how much space a particular file will occupy in memory.

Let’s understand some such memory units which are commonly used to measure and represent data.

## 12 Basic Memory Unit in Computer

- Bit
- Nibble
- Byte
- word
- Kilobyte
- Megabyte
- gigabyte
- Terabyte
- petabyte
- Exabyte
- Zettabyte
- Yottabyte

### 1. Bit

Memory units start with a bit. Bit is the smallest unit used to measure data in a computer. 1 bit contains either 0 or 1. 0 represents no electronic signal in memory and 1 represents is signal.

All the computers in this world understand the language of 0 and 1, so whatever instruction we have to give to the computer is in the form of 0 and 1.

### 2. Nibble

This is a collection of 4 bits which is sometimes also called ‘Nybble’ or ‘Nyble’.

### 3. Byte

A group of 8 bits is called a byte, it is the smallest unit used to represent any data in a computer.

### 4. Word

Like a byte, Word is also a group of some fixed size bits. This is another basic memory unit of the computer system.

The number of words depends on different computer systems. The number of bits in a word can range from 8 bits to 96 bits.

### 5. Kilobyte

A Kilobyte is a collection of many bytes or you can say that a Kilobyte is made up of many bytes. There are 1024 bytes or binary digits in a kilobyte.

### 6. Megabyte

A Megabyte is made up of many Kilobytes. There are 1024 Kilobytes in a Megabyte.

### 7. Gigabyte

A Gigabyte (GB) is made up of several Megabytes (MB). There are 1024 Megabytes (MB) in a Gigabyte.

### 8. Terabyte

A Terabyte is made up of several Gigabytes (GB). There are 1024 Gigabytes (GB) in a Terabyte.

### 9. Petabyte

There are 1024 Terabytes (TB) in a Petabyte.

### 10. Exabyte

There are 1024 Petabytes (PB) in one Exabyte.

### 11. Zettabyte

There are 1024 Exabytes (EB) in a Zettabyte.

### 12. Yottabyte

There are 1024 Zettabytes (ZB) in a Yottabyte.

## Memory Units Chart

Memory Unit | Description |

NIBBLE | In one NIBBLE there are 4 bits. |

Byte | In one byte there are 8 bits. |

Word | In one word there can be from 8 bits to 96 bits. |

Kilobyte (KB) | In one Kilobyte there are 1024 bytes. |

Megabyte (MB) | In one Megabyte there are 1024 Kilobytes. |

Gigabyte (GB) | In one Gigabyte there are 1024 Megabytes |

Terabyte (TB) | In one Terabyte (TB) there are 1024 Gigabytes (GB) |

Petabyte (PB) | In one Petabyte there are 1024 Terabyte |

Exabyte (EB) | In one Exabyte has 1024 Petabytes |

Zettabyte (ZB) | There are 1024 Exabyte in a Zettabyte. |

Yottabyte (YB) | There are 1024 Zettabytes in a Yottabyte. |

**Read More -:**

- What is Computer Memory
- What is Primary Memory
- What is Secondary Memory
- What is Cache Memory
- What is Register Memory
- What is Read-Only Memory
- What is Random Access Memory
- What is Magnetic Disk
- What is Floppy Disk
- What is Magnetic Tape

## Conclusion

Friends, I hope that after reading this article you will get all information about, what is memory units. And what is its use?

If you want a complete tutorial on Computer Fundamentals, then see this article Computer Fundamentals Tutorial. Here you will get all the topics of Computer Fundamentals step by step.

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