What is computer memory? Mention the types of computer memories with example.
| Subject | Introduction to Computer System |
|---|
A memory is just like a human brain. It is used to store data and instructions. Computer memory is the storage space in the computer, where data is to be processed and instructions required for processing are stored. The memory is divided into large number of small parts called cells. Each location or cell has a unique address, which varies from zero to memory size minus one. For example, if the computer has 64k words, then this memory unit has 64 * 1024 = 65536 memory locations. The address of these locations varies from 0 to 65535.
Memory is primarily of three types −
Cache Memory
Primary Memory/Main Memory
Secondary Memory
Different types of secondary storage devices are:
Hard Disc, Compact Disc, DVD, Pen Drive, Flash Drive, etc.