What Is Main Difference Between Cache Memory And Primary Memory(ram)?

Primary Memory is the  memory that is directly accessible to the CPU. The computer needs this memory for constant processing of data and instructions. It reads instructions and executes them. RAM is a kind of Primary Memory. It is small in size, light but expensive also.

Whereas a Cache Memory is a kind of memory which is used by the Central processing unit of a computer. It reduces the time to access the main memory. It is smaller in size, faster and stores copies of data from frequently visited locations.

Primary memory is connected to the CPU Through a memory bus or a front end bus. RAM is used as primary storage having all such storage such that does not need to start the CPU.

Cache memory is a memory that is used by CPU so that the average time to access the memory is reduced. It is a smaller and faster memory that stores copies of data which is used in frequently accessed main memory locations,

On the other hand, Primary memory is the main memory of the computer. The processor can easily access, store and retrieve information from the primary memory. Primary memory has two types, Random access memory and read only memory.

Cache memory works as an intermediate between CPU and main memory (Cache speed is faster than main memory), it contains only very small piece of information (instructions) while main memory can hold several process together in multiprocessing environment.Cache is very costly in comparison of main memory.

RAM:
Ram is random access memory, it is temporary memory. When computer turns on the all basic information loads on Ram and also that program which we run on the computer available on ram.ROM is read only memory. It is permanent memory. We can't change, delete or write any new thing on ROM.HARD DISK is our storage on which our programs permanently saved. We can access our programs and files any time from hard disk. When we require any our save file, it loads on ram from hard disk and we can access it.

The cache memory is placed between the main memory and the cpu the cache memory is used to store one bit of the data  it is much faster then the primary memory

Cache is located on the processor so that it can access what's in there faster. The management system will put things in cache that it thinks you might need next. So if you're looking at one page of a word document, it might decide to put the next page in cache so that you will get it quicker. That's a very very simple example as probably the whole document will fit in cache.

Register is the fastest memory because it can be accessed directly by cpu.

RAM random access memory is used when carrying out calculations or functions on a computer. It is overwrite time and time again and is not meant to store anything just helps with function of computer the more ram the faster the computer operates. As it is not designed to store information power cuts have no effect on it