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Chapter II, INTERNET, 1. What is internet?, Ans: Internet is an international network of networks all over the world., 2. Describe the history/evolution of internet., Ans:, In 1969 ARPANET was created by US defense based connecting one computer in California and, three in Utah., In 1972 ARAPNET was connected to 23 computers over the world., Later in connected to NSFNet (National Science Foundation network) and other networks over the, globe to form Internet., 3. Full forms of some internet organizations., IETF – Internet engineering task force, IRTF – Internet research task force, IAB – Internet Architecture Board, ISP – Internet Service Provider., 4. When was internet service started in India? By which company., Ans: Internet service in India was started by VSNL (Videsh Sanchar Nigam Ltd.) on 15th Aug 1995., 5. What are the components required for Internet?, Ans: The following components are required for Internet., Computer: All types of computer such as Desktop, Laptop, Notebook, Smart phones can be, connected to Internet., Programs: Special programs such as internet explorer are used on computer to access internet., Modem: It modulates the analog signal to digital signal and vice versa to access information from, internet to computer., ISP: it is an organization that provides internet access., 6. What are the uses of Internet?, Ans:, Internet helps to communicate by exchanging mails and chats., It helps to share files and software., Search any information on any topic or organization, individual., Read or watch news., Online learning, Ticket booking etc., 7. Describe different types of internet access?, Ans: the following are the different methods to access internet., Dial-Up: It uses phone line to connect to internet. It is slowest and can’t use calls and internet, simultaneously., DSL: Digital Subscriber Line use broadband for inter net connection. It is faster than Dial-up and can, use phone and internet simultaneously., Cable: It provides broadband internet through cable TV. It is faster than dial-up and DSL., Satellite: It provides broadband internet directly from satellite. It covers larger area but internet is, too slow., 3G and 4G: It is commonly used in mobile phones to connect to internet by ISP’s network. It is fast, but not as fast as broadband.
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8. Various terminology used in Internet., WWW- World wide Web is a system of hyperlinked hypertext documents that contains information, like text, videos, images that can be viewed with a web browser. (Tim Berners-Lee invented www in, 1989), URL- Uniform Resource Locator or Universal Resource Locator is a specific character string that, refers to a resource in internet. For example : www.oav.edu.in/oavmaj, Website: It is a set of related web pages that can be accessed using a website address known as, URL with any web browser., Web page: It is a document written in HTML(Hypertext Markup Language) or XHTML (Extensible, Hypertext Markup Language) that contains text, videos, images. It can be viewed with a web, browser., Web Browser: it is an application software that helps to view web pages. Example: Google Chrome,, Internet explorer, Mozilla firefox, Opera, etc, Home page: the beginning page of any website is known as home page., Hyperlink: it is a text on webpage that refers to another webpage or content when clicked on it., Download: To copy data from remote computer to local computer., Upload: To send data from local computer to remote computer., TCP/IP: Transmission control Protocol/ Internet Protocol is a set of rules that controls the internet, connection., Hypertext: Text that contains a hyperlink is known as hypertext.
