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COMPUTER CLASS -3, 1.Scratch :– A scratch is one of the easiest computer language., children use scratch to create their games and animated videos., 2.Programming language: -A programing language has a set of, instruction using which we can make the computer active that, we plan., 3.Program:- a set of instruction is known as program., 4.main components of scratch :(A) Sprite, (B)Stage, ©Blocks Palette, (D)Script, (E)Script area, 5. Internet:- Internet is generally defined as a global network, ,connecting millions of computer worldwide., 6 Wedsite:- A website is a collection of related web pages, linked to one another ., 7.Webpage :- The information on the internet is available in the, form of digital pages, which are also called web page., 8Web browser :- Web browser is a special program that allows, the users to access information on the web.

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9.Search engine:- A search engine is a software that searchs for, any information required by the users ., 10Anti virus:- Anti virus is a program that protects your system, against virus ., 11.Responsibility of a good citizen:a. Observe your etiquettes when online, b Report unlawful activity, c Do not tamper with other`s files and folder., D Never create a fake identity ., E Do not copy information as it is from the internet ., 12.URL:- uniform resources locator ., 13 Advantages of interrnet :a. Faster communication, b. Easy sharing, c. Cost saving, d. Online service and E-commerce., e. And many others, 14 Disadvantages of internet:a. Virus threat, b.Information, c.Spam, d.Fast spreading of wrong information.

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Uses of internet in diofferent field:1. News and information, 2. Videos and intertainment, 3. Online services, 4. Chatting, 5. Health and medical, 6. Mailing letters, 7. Tourism and travellers, 8. Banking operations, 9. Video conferencing, 10., Online studying\teaching