How to understand computer memory easily!!!!!!!

First of all, Computer Memory is the computer hardware devices used to store information for immediate use in a computer.

RAM is an acronym for Random Access Memory. The Main Purpose of RAM is to act as a temporary store of data and program instructions, so that they can retrieved quickly by the CPU.

The main reason for it being in the RAM not the Hard Drive because it would take more time to be processed by the CPU

RAM is volatile which means its not permanently saved. For instance you were writing a document and power was cut off, when you open again everything will be lost

Examples of things that get stored in ram 1.A Document that you didn't save(that's why it doesn't save when you close the PC). 2.Apps and The GUI.

Enough of RAM for now, Let's move into ROM, it's an acronym for Read-Only Memory. it's memory that cannot be changed by a program or user ROM retains its memory even after the computer is turned off.

For example, ROM stores the instructions for the computer to start up when it is turned on again so the computer wouldn't know how to start without the ROM, this means the ROM IS VERY IMPORTANT.

ROM is non-volatile which means it is permanently saved, Opposite to RAM which is volatile.

Virtual memory is a feature of an operating system that allows a computer to compensate for shortages of physical memory by temporarily transferring pages of data from The RAM to disk storage.