Computer Hardware Devices

The touch screen displays the output as well as receives inputs by sensing the touch made by user on the options or menu.

LCD refers to LIquid Crystal Display consists of screen filled with molecules of a liquid which reflects the light.

Wireless mouse makes use of either infrared or radio waves to communicate with computer.

These are the input devices which makes use of voice recognition or fingerprint methodology to identify a person's identity.

The shadow mask is one of the technologies used to manufacture cathode ray tube (CRT) televisions and computer displays that produce color images

Bar code readers device represents a sequence of dark and light lines which represents coded data..

This device consists of a photoelectric cell which is packed into a slender tube having the dimension of a pen.

This is the correct expanded form of MOUSE

Monitor has 25 pins jack, so it can not attach through USB port.

It stands for Visual Graphic Adapter that means jack of monitor.

It can attach in USB port to open micro SD cards.

M-commerce is the ability to conduct commerce using a mobile device, such as a mobile phone, a Personal Digital Assistant (PDA), a smart phone or other emerging mobile equipments, such as dash top mobile devices.

A device that is dependent upon another device

It is a socket on motherboard in which expansion card is inserted.

Pen drive can connect to the USB port of the computer system. This port is also known as plug n play port.