What is Computer Memory its Types, Features

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We humans use the brain to remember. But computers do not have brains like us. It uses memory to store data and instructions. Which is called computer memory.

In this article, we will give you complete information about this computer memory. For the convenience of study, we have divided this article into the following parts. (Computer Memory)

Topics

• What is Memory
• Types of Computer Memory
• Cache Memory
• Primary Memory
• Secondary Memory
• Computer Memory Units
• What have you learned?

What is Computer Memory

Memory is the storage and storage of data, instructions and results received from various sources. It is also called remembering in common language, that is, memory. The device used by the computer to remember is called computer memory. Computer memory is like the human brain.

Types of Computer Memory

Data is stored in the computer in permanent and temporary form. For which he uses different types of memory. which are classified as follows.

• Cache memory
• Primary memory
• Secondary Memory

1 What is Cache Memory?

This memory is very fast. Most of the frequently used programs and instructions are stored in this memory. So that the CPU – Central Processing Unit can work faster. (Computer Memory)

Cache memory is located between CPU and main memory. That is, the CPU already receives the data and instructions stored in the cache memory. and avoids duplication of work.

Because it no longer has to go to the primary memory to get instructions and data for any task. That’s why CPU works faster.

In the cache memory, these data and instructions are sent by the operating system. Which are then used by the CPU. The Store Capacity of this memory is limited. That’s why it has to be cleaned again and again. This data is not of use to the user.

Features of Cache Memory

• Cache memory is faster than primary memory.
• In this, the data is stored temporarily.
• In this, the instructions of most used programs and functions are stored.
• Its storage capacity is limited.
• Stored data has to be cleaned repeatedly.

2 What is Primary Memory?

Primary Memory is also called Main Memory and Temporary Memory (Volatile Memory). This memory is part of the CPU. From where the CPU receives data and instructions. And keep it after processing.

The instructions and data of the work currently being performed are stored in the primary memory. This memory is temporary. After the work is over, the stored data is automatically deleted and the data for the next task is stored. This is a continuous process. Even if the computer is shut down, all the data gets deleted.

There are two types of primary memory.

RAM or Volatile Memory –
ROM or Non-Volatile Memory –

Features of Primary Memory

• This memory is temporary.
• Part of the CPU.
• After the power supply or work is over, the data is automatically deleted.
• Computer cannot work without it.
• Faster than extra memory.

3 What is Secondary Memory?

It is also known as External (Extra) and Non-Volatile Memory. It is used to store data permanently. The data stored in this memory is always safe. Which can be accessed by the user and computer at any time. (Computer Memory)

Secondary memory is not a part of CPU. Its data first goes to the main memory, only after that the CPU can use it. Its storage capacity is very high. For example, Hard Disks, CD, DVD, Pan Drives etc.

Features of Secondary Memory

• This is a permanent memory.
• Data is stored forever.
• Its speed is a little less.
• Store capacity is very high.
• The data is saved even when the work is over or the computer is turned off.

Computer Memory Units

Data is stored in the form of 0 and 1 in computer memory. These two numbers are called Binary Digits and Bits. Each digit represents one bit. Therefore the smallest unit of computer memory is Bit. (Computer Memory)

A set of these Binary Digits is made to represent the small characters of the memory. It starts with 8 Digits or 8 Bits (eg; 10011001). These 8 Bits are equal to 1 Byte.

Similarly, to represent more data, a larger set of these bits is made. Which are named on the basis of the number of bits. Below we are telling about the Bits Sets made so far.

Bit = 0 or 1
4 Bit = 1 Nibble
2 Nibble and 8 Bit = 1 Byte
1024 Byte = 1 KB (Kilo Byte)
1024 KB = 1 MB (Mega Byte)
1024 MB = 1 GB (Giga Byte)
1024 GB = 1 TB (Tera Byte)
1024 TB = 1 PB (Penta Byte)
1024 PB = 1 EB (Exa Byte)
1024 EB = 1 ZB (Zetta Byte)
1024 ZB = 1 YB (Yotta Byte)
1024 YB = 1 BB (Bronto Byte)
1024 BB = 1 GB (Geop Byte)

A funny secret of memory

Bit is represented by a small “b” in English. And Byte is represented by the big “B” of English. like; You cannot consider 200 Mbps as equal to 200 MBps. Because 200 Mbps means 200 Mega Bits Per Second. And another 200 MBps means 200 Mega Byte Per Second. (Computer Memory)

What have you learned?

In this article, we have provided you complete information about Computer Memory. Do you know what is computer memory? Along with this, different types of computer memory are also to be known.

We hope that you will like this article and prove useful for you. Do share this article with your friends so that they also get information about computer memory. (Computer Memory)

If you have any question or want to ask something else, then definitely ask by commenting.

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