TechOnespot

 Chapter 4 :- Memory, Storage Devices and Data Representation  Summary  Memory is a part of computer where data and instructions are stored. A computer deals with different type of memories. Two major types of computer memories are (i) primary (main) memory and (ii) secondary (auxiliary) memory. Information in a memory of a digital computer is stored in form of binary digits (0 and 1).A group of 8 bits is known as byte. Primary Memory :- Primary memory, also known as main memory  It is made of larger number of cells. Each cell is identified by a number called an address of the cell. This is known as Random Access Memory (RAM) FIFO Stand for :- First in First Out  LIFO Stand for :- Last in First Out  RAM is volatile memory. There are two basic types of the RAM. The first one is static and second is dynamic. Dynamic RAM (DRAM) needs to be refreshed thousands of times per second. Static RAM (SRAM) docs not need to the refreshed. Computers also contain Read Only Memory (ROM) which are used