Introduction of Computer

Computer is an Electronic device which accepts raw data from user and able to give meaningful output. It can execute a prerecorded list of instructions.

Diagram of Computer

All general-purpose computers require the following hardware components:-

Memory : Enables a computer to store, at least temporarily, data and programs.

Mass storage device : Allows a computer to permanently retain large amounts of data. Common mass storage devices include disk drives and tape drives.

Input device : Usually a keyboard and mouse, the input device is the conduit through which data and instructions enter a computer.

Output device : A display screen, printer, or other device that lets you see what the computer has accomplished.

Central processing unit (CPU): The heart of the computer, this is the component that actually executes instructions.