Internet and the World Wide Web PDF

Chapter 3: The Internet and the World Wide Web  What's Ahead Discuss the Evolution of the Internet Identify various Broadband Internet Connections and difference between broadband internet connections and dial up connections Describe the Types of Internet access provider Pur...

Chapter 3: The Internet and the World Wide Web  What's Ahead Discuss the Evolution of the Internet Identify various Broadband Internet Connections and difference between broadband internet connections and dial up connections Describe the Types of Internet access provider Purpose of IP addresses  What's Ahead Purpose Web browser and the component of a Web Address How to use search engine. Difference between search engine and a subject directory. Types of Website Explain how Web pages use graphics, animation, audio, video virtual reality etc. Steps require for Web publishing Explain how email, mailing, lists, instant messaging, chat rooms and FTP work. The Internet The Internet is a global network of billions of computers and other electronic devices. With the Internet, it's possible to access almost any information, communicate with anyone else in the world, and do much more. You can do all of this by connecting a computer to the Internet, which is also called going online. Internet Basics: What is the Internet? (gcfglobal.org) Evolution of the Internet Evolution of the Internet  Evolution of the Internet Advance Research Project Agency Network World's first operational network – 1967 ARPANET was developed under U.S. Department of Defense (DOD), it was developed to survive nuclear attack. It was the 1st network to implement the protocol suit TCP/IP DOD divided the network into HOSTS and Subnet.  Evolution of the Internet Advance Research Project Agency Network The Internet originated as ARPANET in September 1969 and had two main goals: Allow scientists at different physical locations to share information and work together. Function even if part of the network were disabled or destroyed by a disaster.  Evolution of the Internet National Science Foundation 1980 – Started to make high capacity network for Academic and Engineering research. NSF connected its huge network of five supercomputer centers, called NSFnet to ARPANET in 1986. 1990 – Interworking of ARPANET, NSgnet and other Private Network resulted into INTERNET.  Evolution of the Internet Internet Journey In 90's Internet cost is Rs. 25,00 – 9.6 kbps for 250 ours only. In 20's century internet has become more cheaper and faster – RS. 400 – 1mbps Unlimited Internet for 28 days. Internet evolution from Computer to Smartphone. In 70's – LAN Network and 1997 – Wireless Network (WIFI) Over the year Internet for Mobile phones is changed GPRS –2G-3G-4G- 5G. The World Wide Web The World Wide Web Web Browser A Web browser, or browser, allows users to access Web pages and Web 2.0 programs The World Wide Web Web Browser A home page is the first page that a Web site displays. Web pages provide links to other related Web pages. Surfing the Web The World Wide Web Web Browser A Web page has unique address called a URL or Web address The World Wide Web Search Tools Two types of search tools are search engines and subject directories Search Engine Subject Directories Finds information related to a Classifies Web pages in an specific topic organized set of categories  The World Wide Web Search Engine A search engine is helpful in locating items such as: Images Videos Audio News Maps People or Businesses Blogs The World Wide Web Criteria for evaluating a Web Sites's Content Information Presented on the Web must be evaluated for accuracy Affiliation – A reputable institution should support the Web site without bias in the information. Audience – The Web site should be written at an appropriate level Authority – The Web site should list the author and the appropriate credentials. The World Wide Web Criteria for evaluating a Web Sites's Content Information Presented on the Web must be evaluated for accuracy Content - The Web site should be well organized and the links should work. Currency – The information on the Web page should be current Design – The pages at the Web site should download quickly, be visually pleasing, and easy to navigate. Objectivity - The Web site should contain little advertising and be free of preconceptions The World Wide Web Multimedia Multimedia refers to any application that combines text with: Graphics Animation Audio Video Virtual Reality The World Wide Web Graphic A Graphic is a digital representation of non-text information Graphic formats include BMP, GIF, JPEG, PNG, and TIFF The World Wide Web Thumbnail A thumbnail is a small version of a larger graphic  The World Wide Web Animation Animation is the appearance of motion created by displaying a series of still images in sequence The World Wide Web Audio Audio includes music, speech, or any other sound. Compressed to reduce file size Streaming is the process of transferring data in a continuous and even flow. The World Wide Web Video Video consists of full-motion images that are played back at various speeds. The World Wide Web Virtual reality (VR) Virtual Reality (VR) is the use of computers to simulate a real or imagined environment that appears as a three-dimentional space The World Wide Web Plug-In A Plug-In is a program that extends the capability of a Web browser. Web Publishing Web Publishing is the development and maintenance of Web pages Other Internet Services Email is the Transmission of messages and files via a computer network. An Email program allows you to create, send, receive, forward, store, print, and delete email messages. Other Internet Services A Mailing List is a group of emails names and addresses given a signal name. - Subscribing adds your email name and address - Unsubscribing removes your name Other Internet Services A Mailing List is a group of emails names and addresses given a signal name. - Subscribing adds your email name and address - Unsubscribing removes your name Other Internet Services FTP (File Transfer Protocol is an Internet standard that permits file uploading and downloading with other computers on the internet Many Operating systems include FTP capabilities An FTP server is a computer is a computer that allows users to upload and/or download files using FTP. Other Internet Services Social media is an internet-based form of communication. Social media platforms allow users to have conversations, share information and create web content. Thank you