Computersight -

 Firstly, an Input device takes the data from the user and sends them to the processor. Then the processor processes raw data and convert it into useful information. Storing both process and unprocessed data for later usage are done by the storage devices.  An output device shows or displays the processed data.

INPUT DEVICES

The data is sent into the computer system, it is called an input. Input can be in the form of texts, graphics, audio and video. Input devices are the devices needed to input data into the computer system.

The example of input devices are keyboard, mouse, scanner, barcode reader and digital camera are some example of input devices.

OUTPUT DEVICES

The result of raw input data that has been processed by the central processing unit into meaningful information is known as Output. Common forms of output are texts, numbers, graphics, sounds, animations and videos. Most of the time, output are shown or displayed on the monitor, printer or speaker.

STORAGE DEVICES

The system’s primary storage, Random Access Memory (RAM) can only hold data temporarily. Therefore, a secondary storage is needed to provide additional storage. The data stored in the secondary storage are permanent and will not loss except the user delete it or the hardware spoilt.

Secondary storage can be magnetic disks and optical disks. Examples of secondary storage are hard disks, rewritable CDs and DVDs as well as removable disks such as pen drives and etc.

PERIPHERAL DEVICES

External hardware devices attached to the computer are called peripheral equipments.