What is Computer Primary Memory: Types, Characteristics, Advantages and Disadvantages of Computer Main Memory

 
Ability to recall whatever you have done is very vital in our daily life. And you been able to recall is because you have a memory. Memory is an important component in every device as it facilitates data storage.



If you have no idea about computer memory, then we suggest you read this meaning of computer memory  to learn about device memory and its various types.

Main or Primary Memory
This memory has a limited storage capacity and usually lost stored data and instructions if the computer eventually goes off, also is not as fast as the registers. Therefore, it is used to store current data and instructions that the computer device is working on. 

Types of Primary Memory
This memory is divided into Read Only Memory (ROM) and Random Access Memory (RAM).

1. Read Only Memory (ROM)
As the name suggested, ROM is a memory where data that needs no alterations or changes are stored. For example, programs that are required for system's booting are stored in the ROM alongside with algorithms needed by the operating system.

Characteristics of Primary Memory
The following are some characteristics of primary memory:
It is the main memory of the computer device
It only stores data and instructions that the computer is currently working on
It is very fast upon data retrieval compared to secondary memory
No computer system can boot successful without the primary memory
It lost data and instructions once the computer device turned off.
It is a semiconductor memory


Advantages of Primary Memory
The following are some advantages of primary memory.
It is faster than secondary memory
It contribute to the successful booting of a computer device
It only stores data and instructions that is currently needed by the CPU


Disadvantages of Primary Memory
Some disadvantages of primary memory are:
Any data stored in it will lost was the device is turned off.
It is expensive to acquire compared to secondary memory
It has limited storage capacity
It only holds data and instructions that are currently in process
It is a volatile memory