Concepts of InternetThe InternetDescibe the InternetInternet is a wide world connection of computer which enables sharing of resource like files and folders, picture and music, teaching materials like notes / tutorials and computers.This is the global system of interconnected computer networks that use the Internet protocol suite (TCP/IP) to link devices worldwide. Communication between networks is called inter networking. Therefore internet comes from the word inter networking meaning a connection of data communication. The communication in which the end instruments are computers. The internet is a worldwide public networks that interconnect thousands of smaller networks to form one large “web” of communication.Many private networks, some with thousands of users of their own connect to the internet by using the services of internet services providers (ISPs )In simple words internet is a huge number of computers that are connected to each other throughout the world. These computers are situated in many different countries and are connected through telephone lines, cables in the ground and even satellite in spaces.The Historical Development of InternetExplain the Historical Development of InternetInternet involved from US Department of defense project called ARPANET (Advanced Research Project Agency Network) in 1969. The main reason was to exchange information between researchers in this project. Browses and Word Wide Web (WWW) were introduced in early 1990’s.Search EngineDescribe Search EngineA search engine is a web site that collects and organizes content from all over the internetSearch engines are programs that search documents for specified keywords and returns a list of the documents where the keywords were foundThis is a program that searches for and identifies items in a database that correspond to keywords or characters specified by the user, used especially for finding particular sites on the World Wide WebThe List of Search EngineList Search EngineExample of search engines are:
TYPES OF SEARCH ENGINE
Web search engine
- A web search engine is a software system that is designed to search for information on the World Wide Web. The search results are generally presented in a line of results often referred to as search engine results pages (SERPs). The information may be a mix of web pages, images, and other types of files. Some search engines also mine data available in databases or open directories. Unlike web directories, which are maintained only by human editors, search engines also maintain real-time information by running an algorithm on a web crawler.
Access Information using Search EngineUse Search Engines to Access InformationComplete and Continue Internet Application: Electronic MailInternet Application: Electronic LearningInternet Application: Electronic CommerceNegative Effect of the Internet