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REVISIT


             ▶ 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.




























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