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What is computer memory and its types

by Sudhir kumar

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Computer memory is actually a part of the computer that It is used to store data securely. In other words, it is a physical device, which is used to store data, information and instructions in a computer temporarily and permanently.

Today I thought that all the doubts of you people regarding computer memory should be cleared through this article today so that you do not need to go anywhere else.

With this, you can understand these technical concepts very easily. So without delay let’s start and know What is computer memory and its types.

What is Computer Memory

What is computer memory in Hindi

computer memory There is such a storage space in the computer, where the data that is processed and the instructions which are needed for processing are stored there.

For your information, let me tell you that a memory is like a human brain, it is used to store data and instructions.

Computer memory is divided into small parts of many numbers called key cells. Each location or cell has a unique address, which varies from zero to memory size minus one.

For example, if your computer has 64k words, then in this memory unit 64 * 1024 = 65536 There are memory locations. The address of these memory locations varies 0 to 65535.

Memory is a very essential part of any computer because without it the computer cannot do even a simple task. There are two basic types of computer memory – primary memory / Volatile memory and Secondary memory / non-volatile memory.

Random over here Access Memory (RAM) is a volatile memory and Read-Only Memory (ROM) is a non-volatile memory.

types of computer memory

People always have doubts about the type of computer memory. Which I want to solve today. If seen, there are mainly three types of computer memory.

There are primarily three types of memory: –

What is Cache Memory?

This is the fastest memory of the computer. Cache memory is a very high speed semiconductor memory which speeds up the CPU. It acts as a buffer between CPU and main memory. They are used to hold those parts of data and programs that are used frequently by the CPU. Parts of data and programs are first transferred from disk to cache memory by the operating system, from where the CPU can easily access them.

Advantages of Cache Memory

Let’s get some information about the advantages of Cache Memory.

  • Cache memory is very fast as compared to main memory.
  • It consumes very less access time as compared to main memory.
  • They store those programs which have to be executed within a short period of time.
  • They store the data for temporary use.

Disadvantages of Cache Memory

Let’s get some information about some Disadvantages of Cache Memory.

  • Cache memory has limited capacity.
  • It is very expensive (precious).

What is Primary Memory (Main Memory)?

Primary memory holds only that data and instructions in which the computer is currently working. It has very limited capacity and the data gets lost in it when the power is switched off.

It is generally made up of semiconductor device. These memories are not as fast as registers. The data and instructions that need to be processed reside within this main memory.

They are divided into two subcategories RAM And ROM.

What are the Characteristics of Main Memory?

  • These are semiconductor memories.
  • It is also called main memory or prime memory
  • This is usually volatile memory.
  • In this, the data is lost when the power is switched off.
  • This is the working memory of the computer.
  • These are much faster than secondary memories.
  • A computer does not run without primary memory.

what is ram

Full form of RAM is Random Access Memory. This is a part of the main memory of the computer which can be accessed directly from the CPU. RAM is used to read and write data, which CPU randomly access does.

The memory of RAM is volatile, which means that when the power is turned off, then the information stored in it is also lost. Most of the data and programs that are modified are stored in RAM.

There are two different types of Integrated RAM chips available:

1. SRAM (Static RAM)

2. DRAM (Dynamic RAM)

what is rom

The full form of ROM is Read Only Memory. Let us know about some of its features.

1. It stores many important information which are necessary to operate the system, such as programs which are essential to boot the computer.

2. This memory is volatile, meaning that even after the power is switched off, the data is not lost in it.

3. It is used in embedded systems or where no change of programming is required.

4. They are mainly used in calculators and peripheral devices.

Different Types of Read Only Memory

1. PROM (Programmable read-only memory) – It can also be programmed by the user. And once it has been programmed then the data and instructions which are in it cannot be changed any more.

2. EPROM (Erasable Programmable read only memory) – They can also be reprogrammed. To erase the data in it, they are exposed in ultra violet light. Also to reprogram it, you have to erase all the previous data.

3. EEPROM (Electrically erasable programmable read only memory) – In this data is erased electric By applying the field, there is no need for ultra violet light in it. If we want, we can erase all the parts of the chip.

What is Secondary Memory?

This is the third and last memory of computer memory. This type of memory is called external memory or non-volatile memory Also called. It is much slower than main memory. Its main use is to store data or information permanently.

CPUs cannot access these memories directly, rather they have to use input-output routines for this. The contents of secondary memories are first transferred to the main memory, and only then they CPU access Can do. for example CD-ROM, DVD, Falsh Drive, Hard Drive And so on.

What are the Characteristics of Secondary Memory?

  • These are magnetic and optical memories.
  • This Also called backup memory.
  • This is a non-volatile memory.
  • Data is stored permanently in this, even if you switch the power off.
  • It is used to store data in the computer.
  • A computer can also run without a secondary memory.
  • These are very slow compared to primary memories.

what did you learn today

I hope you like this article of mine What is Computer Memory Must have liked it. It has always been my endeavor to provide complete information about the types of computer memory to the readers so that they can be accessed from any other sites or websites. There is no need to search in the context of that article in the internet.

This will also save their time and they will also get all the information in one place. If you have any doubts about this article or you want that there should be some improvement in it, then you can write low comments for this.

If you liked this post Computer Fastest Memory in Hindi or got to learn something, then please share this post on Social Networks such as Share on Facebook, Twitter etc.

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