Computer Input Devices and Data Processing
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Questions and Answers

What is the primary function of a Card Reader?

  • To erase data from a card
  • To write data onto a card
  • To read data from a card (correct)
  • To store digital data
  • What type of card is commonly used with a Card Reader?

  • Punch card
  • Magnetic card (correct)
  • Optical card
  • Credit card
  • What is the purpose of an OMR (Optical Mark Reader) device?

  • To mark optical cards
  • To read optical marks (correct)
  • To read digital data
  • To write data onto a card
  • What is the typical use of a Card Reader in a computer?

    <p>To input data into the computer</p> Signup and view all the answers

    What is the characteristic of a punch card?

    <p>It is a thick, stiff paper card</p> Signup and view all the answers

    What is the purpose of a magnetic strip on a card?

    <p>To store digital data</p> Signup and view all the answers

    What is the difference between a Card Reader and an OMR device?

    <p>A Card Reader reads digital data, while an OMR device reads optical marks</p> Signup and view all the answers

    What is the common application of an OMR device?

    <p>In objective-type exams</p> Signup and view all the answers

    What is the result of using an OMR device in an objective-type exam?

    <p>A file containing the results</p> Signup and view all the answers

    What is the advantage of using a Card Reader?

    <p>It increases the accuracy of data input</p> Signup and view all the answers

    Study Notes

    Here are the study notes:

    Input Devices

    • Keyboard: an input device that allows users to type data into the computer
    • Mouse: a pointing device that allows users to interact with the computer graphically
    • Scanner: an input device that converts paper documents or images into digital data
    • Barcode Reader: an input device that reads barcode data and transmits it to the computer
    • Optical Mark Reader (OMR): an input device that reads marked data from forms and transmits it to the computer

    Storage Devices

    • Hard Disk: a non-volatile storage device that stores data permanently
    • Floppy Disk: a portable storage device that stores data temporarily
    • Compact Disk (CD): an optical storage device that stores data permanently
    • Flash Drive: a portable storage device that stores data temporarily

    Output Devices

    • Monitor: an output device that displays text and images
    • Printer: an output device that prints text and images on paper
    • Speaker: an output device that produces sound

    Computer System

    • CPU (Central Processing Unit): the brain of the computer that executes instructions
    • Motherboard: the main circuit board of the computer that connects all hardware components
    • Power Supply: a component that provides power to the computer
    • RAM (Random Access Memory): a volatile memory that stores data temporarily while the computer is running

    Input/Output Operations

    • Data Entry: the process of entering data into the computer using input devices
    • Data Processing: the process of executing instructions by the CPU
    • Data Storage: the process of storing data in storage devices
    • Data Retrieval: the process of accessing stored data

    Computer Peripherals

    • Card Reader: a device that reads data from cards (e.g., credit cards)
    • Magnetic Stripe Reader: a device that reads data from magnetic stripes on cards
    • OMR (Optical Mark Reader): a device that reads marked data from forms

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    Description

    This quiz covers the basics of computer input devices and data processing, including data collection, storage, and retrieval methods.

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