Input & Output Devices, Study Notes, Material - All Teaching Exams

By Ashish Kumar|Updated : August 29th, 2022

 

In this article, we should read related to the  Input & Output Devices, Important for the KVS PRT, TGT & PGT Teaching exam.

 

Input Devices (How to tell it what to do): This unit makes a link between user and computer. The input devices translate the information into a form understandable by the computer.

  • Keyboard- The most common and very popular input device which helps in inputting data to the computer
  • Mouse- Mouse is the most popular pointing device and cursor-control device having a small palm-size box with a round ball at its base which senses the movement of the mouse and sends corresponding signals to the CPU when the mouse buttons are pressed.
  • Joy Stick- To move cursor position on a monitor screen. It is mainly used in Computer-Aided Designing (CAD) and playing computer games.
  • Light pen- It is used to select a displayed menu item or draw pictures on the monitor screen.
  • Track Ball- Mostly used in notebook or laptop computer, instead of a mouse. This is a ball that is half inserted and by moving fingers on the ball, the pointer can be moved
  • Scanner- A scanner allows you to scan printed material and convert it into a file format that may be used within the PC.
  • Digitizer- It converts analogue information into digital form.
  • Microphone-Microphone is an input device to input sound that is then stored in digital form.
  • Magnetic Ink Character Recognition (MICR)- MICR input device is generally used in banks because of a large number of checks to be processed every day.
  • Optical character recognition (OCR)- is a method of converting a scanned image into text.

Output Devices: (How it shows you what it is doing) Output devices translate the computer's output into a form understandable by users.

Monitors: Monitors, commonly called Visual Display Unit (VDU) are the main output device of a computer. It forms images from tiny dots, called pixels that are arranged in a rectangular form. The sharpness of the image depends upon the number of pixels.

There are two kinds of viewing screens used for monitors.

  • Cathode-Ray Tube (CRT): The CRT display is made up of small picture elements called pixels. The smaller the pixels, the better the image clarity, or resolution
  • Flat-Panel Display: The flat-panel display refers to a class of video devices that have reduced volume, weight and power requirement in comparison to the CRT.

Printer: A printer is an output device, which is used to print information on paper.

  • Impact Printers: The impact printers print the characters by striking them on the ribbon which is then pressed on the paper.
  • Non-Impact Printers: Non-impact printers print the characters without using a ribbon. These printers print a complete page at a time so they are also called Page Printers. Laser Printers, Inkjet Printers.
This article tends to be beneficial for the following exams - REETUPTETCTETSuper TETDSSSBKVS etc.
 
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FAQs

  •  The weightage of Computer section in the KVS Exams is 10 Marks.

  • KVS exam does not include negative marking.

  • KVS exam will be conducted for 150 marks.

  • The level of computer questions asked in the KVS exam is moderate.

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