Input and Output devices

Output Devices

An output device is sending the information from the computer.

Bar Code Reader

Bar code Reader is used to scan identification codes directly from products, books and member ship cards

CRT

CRT (Cathode-Ray Tube) is an old fashion monitor. It shows the on the screen by using the cathode ray tube which is series of red, blue and green dots or lines. These dots or lines are the ones that are translated by your brain as recognizable images

Chip reader

Chip Readers is used for reading data from chips on bank cards

Concept Keyboard

Concept Keyboard is a picture on a keyboard instead of letters, people use this in restaurant

Dot matrix Printer

Dot Matrix Printers uses a printer head and ribbon to generate characters on continuous stationery. They are often used in industry to print payslip, labels and invoices.

Drum Plotter

Drum Plotter is a large format printer with a pen that moved in a single axis track and the paper itself moves on a cylindrical drum to add the other axis or dimension.It is smaller than a flat bed plotter.

Flat bed plotter

Flat Bed Plotter is a large format printer that mechanically controls pen to draw an outline. They used turtle graphics program. They can move in any direction.

Graphical Tablet

Graphical Tablet is used to input freehand drawings into the computer

Inkjet Printer

Inkjet printers are printers that are used for printing text, graphics and photos very quickly, also with high quality. It can be used to print digital photography and small documents.

Input Devices

Input device is devices putting data and information into the computer

Keyboard

Is use to enter text into the computer

Joysticks

Joysticks is used to control objects on a screen in computer games, flight simulators, etc

Light Sensors

Light Sensors is use to adjust the light levels in the right position

Light Pen

Light pen is a sensitive pen that connects to the computer and likely to be the same as touch screen

MICR

Magnetic Ink Character Reader (MICR) is used for putting data from bank cheque

Magnetic Stripe Reader

Magnetic stripe readers is used to read data from magnetic stripes on identity and banking cards

Mouse

Mouse controls the position of the pointer on the screen in any computer system

Multimedia Projector

Multimedia projector is use to connect to a computer and television to present information to a large audience with larger scale.

Numeric Keypad

Numeric Keypad is used only for putting numerical information that needs to be enter.

OCR

Optical Character Reader (OCR) transfer handwritten or printed text into editable text on a computer

OMR

Optical Mark Reader (OMR) used to read and input information from a form, class register or test paper

Pin Pad

Pin Pad is use to enter data into an ATM machines, EFTPOS system, entry doors and handheld devices

Pressure Sensors

Pressure Sensors is used for input pressure readings to a microprocessor or computer

QRC

QRC (quick response code) is a matrix or two dimensional code, It can be read by QR scanners, mobile phones, smart phones, camera or all gadgets that has a camera on

Remote Control

Remote Control is a handheld device which is use to control TVs, PCs, home entertainment system, projectors, etc

Scanner

Scanner is an input device that allow hard copies of images (such as drawings or photographs) or text to be transferred to a computer

Speakers

Speakers is an output audio information to a user as speech, music or sound effects. It is use in many devices such as phones, televisions, music, centres, computers and in headphones

The important things that you should consider before buying an input device.

Speed of input: how quickly can information be input or the device used? Relevance to application: Is the right device being used for the right task? Cost: Specialist equipment can be expensive? Accuracy of input: Can fine detail or precise movements be recorded?

TFT

TFT (Thin Film Transistor) is a new monitor that replace CRT monitors

Temperature Sensors

Temperature Sensors is used to input temperature readings to a microprocessor or computer

Touch Pad

Touch pad is an alternative mouse that was built inside laptops

Tracker ball

Tracker ball is an alternative for a mouse, useful for people who have limited movement in their hands

Webcam

Webcam is a camera that allows you to take picture, recording video and video conferencing