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Showing posts from February, 2018

WEB BROWSER

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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 A Web page has a unique address called a URL (Uniform Resource Locator) or Web address. A Web browser retrieves a Web page using its web address. If you know the Web address of a Web page, you can type it in the Address bar at the top of the browser window. WEB PAGE NAVIGATION Navigating web page-most webpage contain hypertext or hypermedia links. Hypertext is links in text based documents. Hypermedia is combines text-based links with graphic, audio and video links.   Tab Browsing Most current web browsers support tabbed browsing. Tabbed browsing allows you to open and view multiple Web pages in a single Web brow...

THE INTERNET ADDRESS

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What is IP Address ? A number that uniquely identifies each computer or device connected to the Internet. IP addresses are also referred to as IP numbers and Internet addresses. IP address sometimes is called a dotted decimal number or dotted quad. IP usage A way to find specific server or computer on the internet or a network. Identify for a particular device/machine on a particular network. Allows transfers of files and e-mail. IP structure IP addresses usually consists of four groups of number each separated by a period. The number in each group is between 0 and 255. It is 32 bit long, each group is 8 bits long. IP versions Two versions of the Internet Protocol (IP) are in use:  IP Version 4 (IPv4)   IP Version 6 (IPv6) Domain names and IP addresses People prefer to use easy-to-remember names instead of IP addresses. The domain name system (DNS) is an Internet-wide distributed database that translates b...
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INTERNET SERVICE PROVIDER A company that provides Internet connections and services to individuals and organizations. ACCESS PROVIDER  A business that provides individuals and organizations access to the Internet for free or for a fee. Responsibilities of an ISP Providing and maintenance a connection to the internet. Support the hardware and software needed to service that connection. Provide 24-hour customer service and technical support. Example of ISP in Malaysia
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INTERNET CONNECTION Two types of Internet Connection: Dial-up Connection and broadband internet connection. DIAL-UP CONNECTION Two types of dial-up connection: Conventional Dial-up          To connect to the Internet, your computer dials its modem                 and connects to a modem attached to computer belonging to             our ISP.                     ISDN ( Integrated Service Digital Network )          1.Typically uses two phone lines transfer data.         2.  ISDN requires a special ISDN modem.         3. I SDN requires a special ISDN modem.         4. Characteristics of ISDN:   Faster, but pricey                               ...

INTERNET,INTRANET AND EXTRANET

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INTERNET TECHNOLOGY Definition of internet :  The internet is a  worldwide collection of networks that links millions of businesses, government agencies, educational institutions, and individuals. Advantages and disadvantages OF INTERNET,INTRANET AND EXTRANET