Primary storage or memory is also known as the main memory, which is the part of the computer that stores current data, programs, and instructions. Primary storage is stored in the motherboard which results in the data from and to primary storage can be read and written at a very good pace. Primary memory Secondary memory Cache memory Now we discuss each type of memory one by one in detail: 1. Primary Memory It is also known as the main memory of the computer system. It is used to store data and programs, or instructions during computer operations. It uses semiconductor technology and hence is commonly called semiconductor memory. Primary memory is of two types: RAM (Random Access Memory): It is a volatile memory. Volatile memory stores information based on the power supply. If ... Learn about primary memory, a part of computer memory that can be directly accessed by the CPU. It is faster, volatile and stores data temporarily. It includes RAM, ROM and cache memory. What is primary memory - Primary memory is working memory in computer also known as the main memory. Examples of primary memory of computer are RAM and ROM..