Computer Memory

Types of computer Memory

Memory are the most essential part of computer system to store running data or processed data. The computer memory come up with various types but here I’m going to mention about Primary Memory and Secondary Memory.

Primary Memory

It is necessary for computer to have primary memories. Without primary memory the computer cannot be able to run almost. Primary memories are RAM (Random Access Memory) and ROM (Read only memory).
RAM is a volatile memory which can store the data while power is on and ROM is known as permanent memory and non-volatile memory which can store the data although the power is off. ROM use to store program to boot or start the computer and also checks for errors while it’s performing POST (Power on Self-Test).

Secondary Memory

Secondary memories are used to store data for a long term. Such as Hard Disk, CD disc, USB or Flash Drives. If we want to save our data for a long time we use these Storage Memories in computer which are also known as Secondary memories. The data in the secondary memories are not directly accessible by the Processor or C.P.U first the RAM access the data from the secondary memory and store the data while it goes for process and RAM still store the program the time it is running. For example we are working in Microsoft Word which is currently running in RAM we save our data into Secondary memory to prevent from getting lost.