Windows NT :: essays research papers

Windows NTOnce a small and simple collection of calculating machines run by the Defence Department,is straight a massive world wide internet of computers, what we call the Internet.The interchange "Internet" literally means "network of networks." In itself, theInternet is constitute of thousands of little local networks scattered throughoutthe globe. It connects roughly 15 trillion users in more than 50 countries a day.The World Wide nett (WWW) is somely used on the Internet. The Web refers to abody of information, firearm the Internet refers to the physical side of theglobal network containing a big amount of cables and computers.The Internet is a packet-switching computer network. When a person sends amessage over the Internet, it is broken into tiny pieces, called packets.These packets travel over many another(prenominal) different routes between the computer that it is be sent from to the computer to which it is being sent to. Phone lines,either fibr e-optics or copper wires ones, carry most of the data packets.Internet computers along the path switch from each one packet that will take it to itsdestination, but no two packets need to line the same path. The Internet isdesigned so that packets always take the trump available route at the time they argon travelling. Routers which are boxes of electrical circuit boards and microchips,which do the essential task of directing and redirecting packets along thenetwork. Much smaller boxes of circuit boards and microchips called modemsdo the task of interpreting between the phone lines and the computer. Thepackets are all switched into a destination and reassembled by the destinationcomputer. Todays Internet contains rich repetitious and interconnectedcircuits simply to reroute the data if any portion of the network goes down orgets overloaded.The packet-switching nature of the Internet gives it sufficient speed andflexibleness to support real-time communication, such(prenominal) a s sending messages toother population in a chat environment (IRC). Every packet is scripted in aparticular protocol language, called TCP/IP, which stands for Transmission swear Protocol/Internetworking Protocol. This protocol is the common languageof the Internet, and it supports two major programs called send TransferProtocol (FTP) and Telenet. FTP lets the transfer files from one Internetcomputer to another. Telnet lets a person to log into a remote computer. Theyhave feature these two tools in complex ways to create the Internet tools suchas Gopher, the World Wide Web and IRC.Some collections of phone lines and routers are galacticr and more powerful thanothers. Spirit and MCI both have each built collections of phone lines androuters that crisscross the United States and can carry large amounts of data.