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Uses of Internet
Internet is a global network. Basically Internet is a type of WAN that uses TCP/IP protocol. Protocol is a set of rules. If you want to use the Internet on your PC you need an Internet connection and a browser. There are number of browsers available in market, such as Internet Explore and Mozila firfox. Basically browser is software that enables a GUI to open a Website.
Internet allows you to do the following tasks:
Wide Area Network (WAN)
WAN (Wide Area Network) is one of the computer networks which is established in a large geographical area. While accessing through the Internet and connecting to the locations of an organization to each other it uses data links provided by the carrier services. It generally carries a variety of traffic types such as data, video and voice. Data services and telephone services are the most commonly used services.
To develop a WAN you can use the following transmission media:
Local Area Network (LAN)
LAN (Local Area Network) is a network which is established in a local area such as office, group of buildings or at home. A LAN can be of two computers and a printer in office, home or it can be extended throughout an organization. It is basically based on number of technologies such as switched 802.3 Ethernet technologies which is running at 10, 100 or 1,000 M bit/s or it may be on IEEE 802.11 WI-FI technology.
Suppose there is a branch of a particular Bank (A) which is situated on some distance from branch (B) of the same Bank, then the transferring of data done between them comes under the LAN process. This whole process comes under
Need of Networking
A computer network is a group of computers which are interconnected. The first networks were implemented by both IBM's SNA (Systems Network Architecture) and Digital's network architecture. Internet is the biggest example of computer networking. Through Internet you can send email or file to any location in the world. While developing computer network you need to use communication devices, such as modem and router. Basically communication devices are useful to send and receive data on the network. There are three different types of networking having different purpose. These are LAN, MAN and WAN. LAN means Local Area Network. This network is mainly used in the offices.
It has the following characteristics:
Basic Terminology of Network
Client/Server System
Railway inquiry system is a good example of client/server system. When you use your computer to check the schedule time about any train, the client program that runs in your computer forwards the request to a server program runs at the railway computer. The server program retrieves the information from railway server and returns back to your personal computer. Your personal computer displays the schedule time of requested train. In the client-server system, client is a computer application that runs on a local computer and requests service from a remote computer. Server is a computer application that runs on a remote computer and provides the requested service to a client. The client-server system can be used by programs running on a single computer, and different computers which are located on different more...
Viewing Clock and Calendar
Windows enables you a system clock that is located at the right corner of the task bar. To open the Date and Time properties you need to open the Control Panel:
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