Lecture 3 What is Internet Search A Web search engine is a tool designed to search for information on the World Wide Web Browsing the Internet for information with the use of a search engine like Yahoo or Google ID: 446968 Download Presentation
Computer Networks. Networks can of course be wired (requires physical connections) or wireless.. Computers (and now other devices such as mobile phones) that are connected via special hardware and a specific means of communication (“network protocol”)..
Use Internet . Explorer . 8.0. Navigate Using Hyperlinks. Search for Specific . Sites. Use a Metasearch . Engine. Complete Advanced . Searches. Download Images, Text, and Web . Pages. CHECKPOINT. Quick Links to Presentation Contents.
Internet Basics. The Internet – connection of billions of computers using the Internet Protocol communication rules.. Computers send . packets. , chunk of data that has an address for the destination, an address for the source, the data and info about the data. Packets are also numbered in order so that when they are received at the destination, they can be reassembled into a message..
Topics. What is the Internet. When did the Internet start. Why did the Internet start. Some Internet applications. The World Wide Web. Search Engines. Ethics. What is the Internet. The Internet. is a collection of computer networks that have agreed to interact with one another..
Search. . Engines. Robots . (“Spiders, . Webcrawlers. ”). No more human selection. Collection rather than selection—everything on the Web is included in a search. Show Google and show number of sites indexed (at bottom of front page) and number of hits for a key word (e.g. “Columbus”)..
Identify your . operating system. Shutdown, restart and log off. Open, close and. . switch . between windows. Minimize. and. maximize . windows. Identify the . toolbar. Identify the . taskbar. Start and exit programs.
2. Learning Objectives. Explain the origins of the Internet and the w. eb. .. Explain how to access the web using providers and browsers.. Compare different web utilities including plug-ins, filters, file transfer utilities, and Internet security suites..
Learning Objectives. Explain the origins of the Internet and the w. eb. .. Explain how to access the web using providers and browsers. Compare different web utilities including plug-ins, filters, file transfer utilities, and Internet security .
Internet & WWW. The Internet and the World Wide Web (WWW) are not the same.. The Internet is a vast network of computer linked together globally. . The Internet is what we use to get onto the WWW. The WWW is just a portion of .
Hardware. Internet & WWW. Outline. Hardware. System Unit . CPU. Memory . Ports. Internet . Internet services. WWW. Types of Sites. E-Commerce . Search Operators. Internet Security. 2. 3. Hardware.
