What is Computer Memory after all? Computer memory is actually a part of the computer that comes in handy to secure the data of the computer। If you say this, it is a physical device, which is used to temporarily and permanently store data, information and investment in a computer।
Today I thought that all the doubts of you guys should be clear through this article today about computer memory so that you do not have to go to another place।
With this you can understand these technical concepts very easily। So without delay let’s start and know what Computer Memory is and its types।
What is computer memory – What is Computer Memory in Hindi
Computer memory is a storage space in the computer, where the data that is processed and the instructions that are needed for processing are done here।
computer memory Kya Hai Hindi
For your information, a memory of a person is like an human mind, to store its estates data and instructions।
Computer memory is divide in many number small parts called key cells। Each location or cell has a unique address, which the varies do merory size minus one from zero।
For example, if your computer has 64k words, then this memory unit contains 64 * 1024 = 65536 memory localations। Address varies of this memory loacations do 0 to 65535.
Memory is the very essential part of any computer because without it the computer cannot even do a simple task। Computer memory has two basic type – Primary memory / Volatile memory and Secondary memory / non-volatile memory।
Here is the Random Access Memory ( RAM) a volatile memory and the Read-Only Memory (ROM) a non-volatile memory।
Types of computer memory
People always have doubts about the type of Computer Memory। Which I would like to solve today। If seen, there are mainly three types of Computer Memory।
There are three types of primarily of memory..।
Primary Memory/ Main Memory
What is Cache Memory?
This is the fastest memory of computers। Cache memory is a very high speed semiconductor memory that makes the CPU of speed up। It acts like a buffer between CPU and main memory।
They are intended to hold the parts of the estuaries data and program that are frequently immigrated by the CPU। Parts of data and programs are transferred first by the operating system from disk to cache memory, from which CPUs can easily access them।
Advantages of Cache Memory
Let’s get some information about the Advantages of Cache Memory
Cache memory is much faster than main memory.
These very rarely access time consume compared to main memory.
These store programs that have to be execute within a short period of time.
These data store for temporary istamal.
Disadvantages of Cache Memory
Let’s get some information about some of Cache Memory’s Disadvantages
Cache memory has a limited capacity.
It is very expensive ( precious ).
What is Primary Memory (Main Memory)?
Primary memory only holds the data and instructions in which the computer is still working। It has very limited capacitance and data gets lost when the power is switched off।
It is made of generally semiconductor device। These memories are not fast like registers। Data and instructions that need to be processed reside within this main memory।
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What is the difference between HDD VS SSD
These are divide RAM and ROM in two subcategories।
What is the Characteristics of Main Memory?
These semiconductor memories occur.
It is also called main memory or prime memory
It is completely volatile memory.
Data becomes lost when power is switched off.
This is the working memory of the computer.
These are very Faster compared to secondary memory.
A computer does not run without primary memory.
What is RAM
RAM has Full Form Random Access Memory। This is a part of the main memory of the computer which can be directly accessed from the CPU। RAM is used to read and write the data that the CPU randomly accesses ।
RAM has memory volatile, which means that when the power is turned off, it also has stored information। Most data and programs that are modify are store in RAM।
Two different types of Integrated RAM chips are available :
- SRAM ( Static RAM)
- DRAM ( Dynamic RAM)
What is ROM
ROM has full form Read Only Memory। Let’s know about some of its characteristics।
- This store many crucial information which is necessary to operate the system of, Such as programs that are essential to boot the computer।
- These are memory volatile. Even after the mean power has become switch off, it does not have data lost।
- These are immigrated to embedded systems or where there is no need to change the programming।
- They are mainly used in calculators and peripheral devices।
Different types of Read Only Memory
- PROM (Programmable read-only memory) – It can also be programmed by user। And once it has been programmed then the data and instructions that are in it cannot be changed further।
- EPROM (Erasable Programmable read only memory) – They can also be reprogrammed। To erase the data in it, they are expose in ultra violet light। To reprogram it together, you have to erase all previous data।
3। EEPROM (Electrically erasable programmable read only memory) – It contains erase data applied to electric field, plus it does not require any of the ultra violet light। We can erase all portions of chip if we want।
What is Secondary Memory?
This is the third and last memory of Computer Memory। This type of memory is also called external memory or non-volatile memory। It is very slower than main memory। Its main is done to store the estuarial data or information permanently।
CPUs cannot directly access these memories, rather they have to dispose of input-output routines। The contents of secondary memory are first transferred to main memory, and only then can they access the CPU। For example CD-ROM, DVD, Falsh Drive, Hard Drive etc
What are the characteristics of secondary memory? These are magnetic and optical memories. It is also called backup memory. It is a non-volatile memory. Data is permanently stored in it, even if you switch off the power. It is used to store data in the computer. A computer can run without a secondary memory. They are much slower than primary memories. Unit of computer memory ) Just as units like seconds have been made to measure time, kilometers to measure distance and grams to measure weight, in the same way, units have been determined to measure the storage capacity of computer memory, which is called the unit of computer memory. Or unit. The smallest unit of computer memory is Bit, in which only one binary digit 0 or 1 can be stored. The measurement units of computer memory are as follows in increasing order…