Key Terms:
+-+-+-+-+-+
# Bridge:- A Device that connects two LAN (Local Area Network)s, or two segments of the same LAN.
# Domain:- A method of identifying Network addresses on the Internet. Typically the name of an institution or unit followed by a dot (.) and an abbreviation, e.g., ‘.gov’ for governments, ‘.edu’ for educational institutions, ‘.com’ for companies, ‘.net’ for Networks or ‘.org’ for organizations and so on.
# E-mail (Electronic Mail):- It's like a letter, a message that one person can send and have received almost instantly (immediately) by someone anywhere in the world through Networks and Modems using telephone lines.
# Home Page:- A Web screen that acts as a starting point. A user can go from a Home Page to multiple sites across the world’s Computer Networks.
# HTTP (Hypertext Transfer Protocol):- The Internet standard that enables information to be distributed across the Web using HTML (Hypertext Markup Language) to upload information.
# Internet:- Abbreviation for InterNetwork. Internet is the world’s largest Computer Network. The Internet was originally established to meet the research needs of the US Defence industry, but it has grown into a huge Global Network serving universities, academic researches, commercial interests and government agencies, all over the world. The Internet uses TCP/IP (Transmission Control Protocol/Internet Protocol) and many of the Internet Host runs most of the NOS (Network Operating System). Many of the commercial Online Services give some level of Internet Access. The most popular uses of the Net are E-mail and the World Wide Web.
# Intranet:- An Intranet is a private Network that uses Internet Protocols and Network connectivity to securely share part of an organization's information or operations with its employees. Sometimes the term refers only to the most visible service, the internal Website. The same concepts and technologies of the Internet such as Clients and Servers running on the Internet Protocol suite are used to build an Intranet. HTTP (Hypertext Transfer Protocol) and other Internet Protocols are commonly used as well, such as FTP (File Transfer Protocol).
# Logging On:- Connecting to a Computer Network.
# On line:- On or actively connected to a Computer Network.
# Packet:- A Packet is the fundamental unit of information transport in all modern Computer Networks, and increasingly in other communications Networks as well.
# Subnet:- A Subnet or SubNetwork that uses the Internet Protocol. It is a range of logical addresses within the address space that is assigned to an organization. The addresses of all nodes in a Subnet start with the same binary sequence, which is the Subnet’s Network ID and Subnet ID.
# URL (Universal/Uniform Resource Locators):- URL contains Information about the access method to use and also about the Resource itself and are used by Web Browsers to connect directly to a specific Document or Page on the WWW (World Wide Web) without having to know where that Resource is located Physically.
# Web Browser:- Enables users of the Internet to discover, retrieve and display documents and data available on the WWW. Web Browsers allow the user to view selectively Hypertext documents, access powerful text-searching tools, listen to sound files and view graphics, animation and video across the Internet.
# WWW (World Wide Web):- Introduced in 1991. Also known as W3C (World Wide Web Consortium), developed by Timothy John who is also known as Tim Berners Lee. "WWW" is a huge collection of HyperText Pages on the Internet. The first Web Site was http://www.info.cern.ch, first uploaded at 6th August 1991. It provided an explanation (description) about the World Wide Web. World Wide Web concepts were developed in Switzerland by the European Laboratory for Practical Physics, known as CERN (Conseil Européen pour la Recherche Nucléaire), but the Web is not just a tool for scientists; it is one of the most flexible and exciting tools in existence for surfing the Internet.
