Wednesday, April 3, 2019
Features of Information Technology
Features of Information TechnologyThe meshwork as well as know as the Net and is also a worldwide interlock of computers. It is made up of thousands of inter spliceed computer networks (a network is a group of computers connected together). A network in the mesh can be large (consisting of thousands of computers), sensitive (consisting of hundreds of computers) or sm all in all (consisting of just a few computers). Similarly, the computers in the network can be mainframes, minicomputers or microcomputers.All computers in the net profit abet and work together to provide a variety of useful operate to the users. Computers in the Internet fall into two basic categories host (servers) and goals (browser).Users connect to the internet by subscribing to an Internet divine service Provider commonly kn consume as an (ISP). An ISP is an organisation that provides bandwidth values at some cost to clients who wish well to hold in internet connections in their homes or offices. NetZe ro, ATT and Microsoft Network (MSN) are ISPs. Individuals also connect to the Internet through business firms, universities, or research centres that hand all over designated Internet domains. Connection is d one and only(a) byTraditional telephone lines and modem broadband run which are provided by Digital subscriber line (DSL), note satellite connections and T lines. T1 and T3 are international telephone standards for digital communications. They undertake dedicated lines suitable for business or government agencies to secure guaranteed service levels.The Internet is based on the TCP/IP networking communications protocol suite. any computer on the net is assigned a unique Internet protocol (IP) place. The Internet also consists of domain naming system which stands for DNS. The (DNS) converts IP addresses to domain names .Features that define the internetThe adult male Wide entanglement (WWW)EMAILNEWSTELNETFile Transfer Protocol (FTP)Internet pass Chat (IRC)The World Wi de mesh (WWW)The World Wide Web Know as WWW is part of the internet that supports hypertext documents allowing users to find and pilot different types of data. It is also a web document that is encoded with hypertext mark-up language tags. These HTML tags allow designers to link contents via hyperlinks. Every web page has an address which is a Uniform Resource Locator which stands for (URL). Currently the Web is viewed in general as a tool for allowing access to a large touchstone of published data.EMAILThis is also known as Electronic charge and it is the reason most people stay on the internet. With the inception of the netmail facility people can create, send and receive e-mail messages to one another around the globe using an email program with an email account on the internet mail server. Email clients usually turn out user interfaces to display and edit text.NEWSNews is another major(ip) feature of the internet. It includes hundreds of newsgroup each newsgroup hosts d iscussion on a specific topic. A newsgroups name indicates its users special topic of interest such as clothes, shoes, viands etc. When participating in a news program you wishing to have a news reader program that lets you read articles that have been post on a news server. Articles can be posted for people to read and respond to.is the worlds biggest electronic discussion forum. It provides a mien for messages to be sent among computers across the entire Internet. People from all over the world participate in discussions on thousands of specific areas of interest called newsgroupsWhat is Telnet?The Telnet protocol is often thought of as simply providing a facility for irrelevant logins to computer via the Internet. Telnet follows a Client / Server Model. You run a magical spell of software on your own PC (the client) to use the resources of a yonder Server Computer (host computer)Some practical uses of Telnet includeTelnet is a Protocol that lets you use the power of the Int ernet to connect you to databases, library catalogs, and other information resources around the world.Telnet lets you connect directly to another computer on the Internet and run programs on the computer (provided you have access permission (Username and Password).theoretically you have a lot of power at your fingertips. Your dumb terminal or very old PC can run programs on the worlds most powerful computers.How is the Internet governed?The Internet is a democratic setup. No single organization owns or manages all the resources in the Internet. Rather, it is collectively have and managed by thousands of organizations from around the world. Each organization owns and manages its own network, but provides services to other networks as well as receives services from them. There is no master or slave relation in the Net all users have equal standing.The Internet data traffic is carried over transcontinental high-speed backbone networks that operate in a range of 45Mbps to 2.5 Gbps. t orso lines are have by long-distance telephone companies called Network Service Providers or by National Government. Local connection lines are owned by regional telephone and cable television companies in the unify States that connect retail users in homes and business to internet. The regional networks lease access to Internet Service Providers (ISPs), private companies, and government institutions. Each organisation pays for its own networks and its own local Internet connection services, a part of which is stipendiary to the long-distance trunk line. Individual internet users pays ISPs for using their services and they in the main pay a flat subscription fee no matter how more than or how little they use the internet.The internet is not owned by any state or organisation and it has no formal management. nonetheless the internet policies are established by a number of master organisations and government bodies including the (IAB) Internet Architecture Board that helps defi ne the overall social organization of the NET, the Internet Corporation for assigned Names and Numbers (ICANN), assigns IP addresses and the World Wide Web Consortium which sets Hypertext Mark-up Language (HTML) and other programming standards for the web.These organisations forge government agencies, network owners, ISPs and software developers with the goal of keeping the Internet operating. The Internet must also conform to the laws of the nation-states in which it operates as well as the technical infrastructure that exist within the nation-states.
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