Storage Devices

Storage Devices are the data storage devices that are used in the computers to store the data and programs for later use.

The memory is of two types;

·        Primary memory 

·        Secondary memory.

Primary Memory:

Primary memory is the main working area in a computer in which data is stored for quick access by the computer's processor. Primary memory is computer memory that is accessed directly by the CPU. As soon as a computer starts, primary memory stores all running applications, including the operating system (OS). A program that is opened in primary memory interacts with the system processor to perform all specific tasks.The computer can manipulate only data that is in main memory. Therefore, every program you execute and every file you access must be copied from a storage device into main memory. The amount of main memory on a computer is crucial because it determines how many programs can be executed at one time and how much data can be readily available to a program.

·       The primary memory is the volatile memory. The volatile memory is the kind of the memory that only works as long as there is continue supply of electricity.

·       The primary memory store data temporarily.

·       The primary memory has less capacity to store data (64MB to 4GB).

·       The primary memory is a high speed memory.

Types of Primary Memory:

There are two types of Primary memory:

• ·       RAM
• ·       ROM