What are the input devices of computer?
1. Input Devices
The parts which are used to give input to the computer are called input devices.
Types of Input Devices
i) Keyboard
ii) Mouse
iii) Scanner
iv) Joystick
v) Web Camera
vi) Microphone
vii) Touch screen
viii) Trackball
ix) Barcode Reader
x) MICR (Magnetic Input Character Recognition)
xi) OMR (Optical Magnetic Recognition)
xii) Electronic Light Pen
Let’s have a look one by one.
i) Keyboard: We feed data into the computer with the help of keyboard. It contains different types of keys. You can type anything by pressing these keys.
ii) Mouse: It is also called a pointing device. It is used to draw and select the objects on the computer screen.
iii) Scanner: It scans our documents such as photographs and pages of text.
iv) Joystick: It is used for playing video games. It has a vertical stick on it. that is used to move the things around the screen.
v) Web Camera: It is used to capture pictures and video images from outside and input them into the computer.
vi) Microphone: It is used to record our voice or other sounds into the computer. It also helps us to talk to people through the internet.
vii) Touch Screen: A touch screen is a special sensor based screen. It takes the input by touch of human finger, hand or pen. A touch screen can detect exactly where it’s surface has been touched. It is also available in mobiles, ipods and many other devices.
viii) Trackball: It works like a mouse. It is a pointing device. A mouse which is upside-down is known as trackball. It consists of a rolling ball on its top. We move the mouse pointer on the screen by rolling only the ball with our hands.
ix) Barcode Reader: The reader which reads the barcode is known as barcode reader. A sequence of thin and thick black lines on the white backgrounds is known as barcode. Each line of barcode represents some number. It has a light source and a lens. It reads bars printed on the barcode and sends digital information to the computer.
x) MICR (Magnetic Ink Character Reader): We use the MICR to read particular characters on bank cheques which are written at the bottom of cheques or demand drafts with a specific magnetic ink. These represent cheque number, branch number as well as customer account number. The numbers are somewhat different in shape. Since, the characters are designed, they can be read by the MICR reader.
xi) OMR (Optical Mark Recognition): We use OMR to detect the marks in an examination. The examination compromises Multiple Choice Questions (MCQs), where answers should be marked with a soft and dark pencil.
xii) Electronic Light Pen: You can write with it like a normal pen, on a special pad. whatever you write on the pad with this pen, appears on the monitor. It is mainly used by engineers, architects and designers.
What are the input devices of computer?
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