Main memory is basically a physical memory which is internal to the computer. It is commonly known as RAM. The computer has to process all the data that is in the main memory. Every file and program that is accessed or executed is stored or copied in the main memory.
On the other hand, a backing storage is a kind of computer storage device which has a larger capacity but whose access time is slower than that of the main memory. It is also known as bulk storage. This memory is external to the CPU. It is normally used to store data and programs that are not used currently. The examples include CD-ROM, floppy, magnetic tape or memory stick.
In primary memory operating system and other files are stored and secondary memory is a secondary hard drive like cd/DVD which stores data for long time, floppy is also falls in secondary memory.
Major difference between primary & secondary memory
Primary Memory is Your Ram Which is Also Called Main Memory
And Secondary Memory is your Hard disk which is you Space Memory
if you don't have Primary Memory You cannot process any thing and not even open a windows and if you don't have secondary Memory You cannot still open the windows so both is needed to do work in Computer.
Primary memory stores data temporarily and secondary memory stores data permanently
The invention of the computer has been one of the biggest events in recent history. The computer is a highly specialized machine, and the ability of man to create such a specialized machine speaks volumes about the evolution of the human mind. In fact, every new invention, each more complex than the other, is reaffirmation of the fact of evolution.
The computer has a very significant role in, besides other things, information technology. Developments in the field of information technology have largely been triggered by the availability of the computer. Information technology has itself been a landmark development. The Internet, for instance, has revolutionized to a large extent the way we live. Sending and receiving messages, conducting business transactions, and operating complex applications – all this is possible at the snap of a finger, literally, today. And all of this has as the base the computer; everything happens over the computer.
That is why the computer is considered very important from the information technology point of view.
Primary memory is that memory which is attached to the motherboard of the computer directly while secondary memory is attached to the motherboard through cables.
Primary memory or main memory is where data is stored temporarily for quick access by the computer's processor. RAM and ROM are primary memory. The capacity of this memory is smaller.
Secondary storage are storage devices where data is stored permanently. It has larger storage capacity than primary memory. Examples of secondary storage are CD-ROM, floppy, magnetic tapes.
Its a secondary and the other primary
About primary memory and secondary
Primary memory is much faster and also it is more cost effective
secondary memory is much slower and also less costly
Ahmm how about the registers and their
role in the execution of instructions?
Well Main Memory Main in it and Secondary has Secondary in it, duh!
Primary memory is hard disk ONLY. Secondary memory includes the portable memory, like USB or a CD.
Diferent between primary memory and secondary memory
The primary memory of the main memory is of the computer. The processor can directly store and retrieves information from it. There are two types of primary memory RAM and ROM.
Secondary memory unlike primary memory is much slower but is far more cost effective and store the data permanently. Hard disk, floppy disk, CD/DVD Rom is the types of secondary memory.
Other names of main memory
Primary memory is permanent memory .