Page 94 - AI Ver 1.0 Class 9
P. 94

At a Glance

              • Information Technology is the use of hardware, software and networking technology for accessing, storing, retrieving
              and transmitting the information.
              • Communication Technology is defined as exchange of information through networks using either wired or wireless
              media.
              • All physical components of the ICT system which we can touch and feel are called hardware.
              • A computer is an electronic device that takes an input from the user and processes it in a desired way and generates
              an output in a specific format.
              • A set of instructions that we give to a computer to get the work done is called software.
              • The devices which help to give data or instructions to the computer are called input devices.

              • An output device is a physical component that converts the processed data or information into a human readable
              format.

              • The measuring unit to measure our data stored in memory or storage devices is byte.
              • Peripheral device ports act as a connector or a point of attachment between the external peripheral devices like
              mouse, printer, keyboard, camera, scanner, etc. and the computer.

              • Motherboard or the main board consists  of a board containing electric circuits that connects all the important
              components of the computer.
              • An operating system is the manager of the computer which comes into role as soon as the power is switched on and
              it remains there in the computer memory till we shut down the computer.
              • The standardised sets of rules that govern the transmission of data and information efficiently between different
              computers connected in an Internet are called protocols.
              • A web browser is an application software designed to access web information through hyperlinks, web pages and
              websites.
              • Electronic mail is the most popular and convenient way of sending and receiving messages through the Internet.
              • Social networking is the process of creating and maintaining a virtual community with the like-minded people or a
              group.
              • Digital India is a campaign launched by the Government of India to make our country digitally equipped.


                                                     Exercise





                                                 Solved Questions

                                          SECTION A (Objective Type Questions)

              uiz
        A.  Tick ( ) the correct option.
            1.  Which of the following is the full form of the ICT?
              a.  Indian Communication Technology
              b.  Information and Communication Technology

              c.  Internet and Communication Terminology
              d.  Industrial Computer Technology


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