Computer Knowledge Chapter 3 Memory Organisation

Computer Science – Chapter 3: Memory Organization

Computer memory is primarily used to store and manage data. In this chapter, the types of memory, their features, function and organization are explained.

1. Types of Memory: Memory is divided into two main types:
2. Primary Memory: Stores data temporarily. Dhruti is more preferred. Example: RAM (Random Access Memory): Used for reading and writing. Volatile memory (data is lost when there is no power). ROM (Read Only Memory): Can only be read. Used to store frequently required data.

Subtypes:

SRAM (Static RAM), DRAM (Dynamic RAM).

2. Secondary Memory: Stores data permanently. The pace is slow but the potential is high. Example: Hard disk, SSD, CD, DVD, USB drive.
3. Virtual memory: Primary memory acts as a complement. Provides temporary use of data on hard disk as RAM.
4. Memory Organization: Memory configuration defines how data and instructions are managed in a computer.