Network, Intranet & Internet At the end of the lesson, students should able to: • Define what is Network, Intranet & Internet. • Explain how Network, Intranet & Internet works. • Define what Is Web Browser. •Understand what is World Wide Web. • Explain how Web Browser works and how to find information. • Define and Explain how E-mail Works. • Know how to apply Security & Privacy when surfing. Network Collection of hardware, interconnected by communication channel that allows us to share resources & information How Network Works Computer Network Cable – (RJ45) Network Hub Server Intranet & How It Works Secure Connection of computers using Internet Protocol (IP) to share resources within an Organization. Resources are shared in a server. User can access within the organization network and cannot be access outside organization network. Internet Internet is an interconnected computer networks that use standard Internet Protocol Suite (TCP/IP). It connects billions of users that consists of academic, business, private or government networks. How Internet Works CLIENT SERVER WEB SERVER OTHER SERVER MULTIPLE OF: MULTIPLE THE INTERNET Modem Broadband 3G Network INTRANET Router- Modem MULTIPLE OF: MULTIPLE PC Laptop I Pad 2 World Wide Web System of information distribution using the Internet. Linked document written based on HTML (Hyper Text Markup Language) Contains Graphic, Audio, Video, etc. Navigation Links: allows user interaction with the web. Data transfer uses HTTP (Hyper Text Transfer Protocol) Web Browser Application software for retrieving, presenting and surfing information on the internet. It access the World Wide Web using URL (Uniform Resource Identifier) example : www.yahoo.com. Example of Web Browser: Internet Explorer HOME TOOLS ENTER URL HERE NEW TAB MENU BAR FAVOURITES BAR SEARCH BOX VIEW FAVOURITES, FEEDS & HISTORY Finding Information on the net Using Search Engine ◦ www.google.com ◦ www.yahoo.com ◦ www.bing.com Online Encyclopedia ◦ www.wikipedia.com Email Electronic Mail eg. [email protected] Method of exchanging digital messages from an author to one or more recipients. Compose, Receive, Forward, Reply, CC & BCC, Delete, Archive, and so on. Share/attach documents, file, song, picture. Popular free email provider: ◦ www.gmail.com ◦ www.mail.yahoo.com ◦ www.live.com.my Security & Privacy while surfing Protect your PC with Updated Antivirus. Never give out personal information (username / password) – number etc. Social Network: Never use your real name / picture. Never download games/movies/songs from entrusted site. Always run full computer scan to avoid malware from phishing our data..