Explain about Internet Service and type of web sites
Type of internet service:
Posts
Explain about web browser, web address, web page navigation, web searching
WEB BROWSER 1) Web Browser A Web browser, or browser, is application software that allows users to access and view Web pages. •The purpose of a web browser is to bring information resources to the user. •With an Internet connection established, you start a Web browser. •The browser retrieves and displays a starting Web page. WEB ADDRESS Web address consists of : EXAMPLE http://www.kmph.matrik.edu.my/fizik/index.html protocol http:// domain name www.kmph.matrik.edu.my/ path fizik/ web page name index.html http:// Hypertext Transfer Protocol A set of rules that defines how pages transfer on the Internet •https:// Hypertext Transfer Protocol Secure A protocol to provide an encrypted communication and secure identification of a network web server Often used for payment transactions on www. •ftp:// File
Different types of Internet connection ,Internet Service Provider and The Internet Address
TYPES OF INTERNET CONNECTION Pictu re 1 TWO TYPES OF DIAL-UP CONNECTION Conventional Dial-up ISDN ( Integrated Service Digital Network ) (to connect to the Internet, your computer dials its modem and connects to a modem attached to a computer belonging to your ISP.) · PC has to dial via a phone line to connect · Characteristics of Conventional dial-up: Slower, but cheaper Ties up phone lines Relatively secure from hackers Example :- Jaring, TMNet v also transfer data over ordinary telephone lines v Typically uses two phone lines to transfer data v ISDN requires a special ISDN modem v Characteristics of ISDN: Faster, but pricey Doesn’t tie up phone line Used by businesses and individuals 1. Digital Subscriber Line - Fast direct internet access via standard telephone line. - Requires DSL modem. -
Overview of the Internet, Advantages and disadvantage of internet, intranet and extranet
OVERVIEW OF THE INTERNET INTERNET DEFINITION The Internet is a worldwide collection of networks that links millions of businesses, government agencies, educational institutions, and individuals. ADVANTAGES DISADVANTAGES Software Downloads: You can freely download software like utilities, games, music, videos, movies, etc from the Internet. Virus threat: Computers attached to Internet are more prone to virus attacks and they can end up into crashing your whole hard disk. Online Services : -Perform all your transactions online. -Can book tickets for a movie, transfer funds, pay utility bills. -Make a hotel or flight reservation right from your home. Social Disconnect: -People now only meet on social networks. -More and more people are getting engaged with virtual world and drifting apart from their friends and family. E-mail: People can sent messages. It
Network Topology Different between bus, star and ring topology Differentiate between LAN, MAN & WAN
NETWORK TOPOLOGY What is Network Topology? A network topology refers to the layout of the computers and devices in a communications network, Types of Network Topology STAR TOPOLOGY BUS TOPOLOGY RING TOPOLOGY DIFFERENT LAN,MAN AND WAN CRITERIA LAN( Local Area Network) MAN ( Metropolitan Area Network) WAN( Wide Area Network) AREA OF COVERAGE Network cover limited geographical area such as closely positioned group of buildings network , network at home, network inside computer laboratory and network in office building . A high speed network that connects Local Area Networks in a Metropolitan Area such as a cities or town. Network cover large geographical area such a countries ,the continents or the world NETWORK SIZE Small size ( in a building) Larger size ( in a cities or campus)