Just as we have to use our brain to think something, in the same way computer also has to use its brain to think which we call computers memory in common language. Works to provide memory storage in computers. There are only 3 types of memory, one is temporary or primary and the other is permanent or secondary and the third is cache memory. What is memory in computer and why is it important? How many types of computer memory can be there? There are mainly three types of computer memory. 1. Primary Memory 2. Secondary Memory 3. Cache Memory Primary memory - Primary memory is also called main memory. Its memory cannot be expanded. Its memory is fixed but in this you have to face the same problem, your data is not permanent in it, your data gets permanently deleted when the power goes out. But in terms of speed, it is faster than secondary memory. That is why primary memory is also called volatile memory. It is of temporary type. Abb...