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Difference between primary memory and secondary memory.

Difference between primary memory and  secondary memory

Primary Memory

primary memory is a very important memory in our computer system.It also called non-versadile memory.  means who memory store data for  temporary time.for example :- store software application files in temporary time. if turn off the application the file will be delete in the primary memory automatically. if we  don't have primary memory  in computer system.computer can't start. 

Main two types of primary  memory

 1. Random Access Memory (RAM) 

 2. Read Only Memory (ROM) 

1. Random Access Memory (RAM) 

this memory is also called primary memory. because without these memory operating system can't start. these memory stored many types of files related to operating system. with the help of this memory operating system load the boot program. These memory can be changeable as read and write both.

2. read only memory

These memory is play a major role as a primary memory in computer system. It is called primary memory because without this memory operating system never start.These memory stored files of operating system without these memory operating system never start. 

II. Secondary memory

These memory is play a major role in computer operating system. But without this memory operating can start.Its stored operating system files inside us. In this types of memory can plug internal and external both can attach in computer system.

Types of secondary memory

Hard disk drive (H.D.D)
Pendrive
Floppy drive
Compact disk (CD) drive
SD Cards

1. Hard drive 

The first popular secondary memory is hard drive. It has stored files of operating system. To help the operating for boot program. These types of memory has taken many sequences of  plates and  move theThe plate with help of one sigle magnet inside the drive. These type of disk replaced by Solid State Drive (SSD).

2. Pendrive

These types of memory is better than floppy disk and CD drive.It has  stored many types of files with the help of electronics waves. Pendrive is now trending in market, because it stored cheap data and transfer inside the file to another device  very quickly.

3. Floppy disk

These type of memory is to play movies, videos, songs and open the document outside the  computer like CD drive. But  these of disk is now replaced  by the pendrives and SD cards.

3. SD cards

These types  of memory is made by a plastics and have gold or silver lines for the slot. When we put this memory in slot. It start the work in device. Its used in mobiles phones, tablets, Ipods, and as well as digital notebooks. These type of cards is use to if we play any video, movies , songs, documents, files in any device.

 written by yash goswami

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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