Uses of the Computer Networks

Uses of the Computer NetworksBy: KIJOLASHTiffany Kim De MesaJoemalin Rose BorsigueLaarni LlorinSheena Antoneth Mendones

What is Computer Network?

2Agroupof two or morecomputing deviceconnectedviaaformofcommunication technology.

Example, abusiness might use a computer network connected via cables or theinternetinorderto gain accessto acommon serveror toshare programs,files and otherinformation.WHAT IS A COMPUTER NETWORK?A computer network or data network is a telecommunications network which allows computers to exchange data.Data is transferred in the form of packets. The connections between nodes are established using either cable media or wireless media.The best-known computer network is the InternetUses of Computer Network

1. Access to remote information.

2. Person-to-person communication.

3. Interactive entertainment.

4. Electronic commerce.

Some of the more popular uses of the Internet for home users are as follows: Resource sharing - programs, data, equipment.

High reliability - replicated files, multiple CPU.

Saving money - small computers have much better price/performance ratio than large ones. The systems of personal computers, one per person, are built with data kept on one or more shared file server machines. Users are called clients, the whole arrangement is called the client-server model.

Scalability - the ability to increase system performance gradually as the workload grows just by adding more processors.

Communication medium - enables e.g. to write a report together.

Goals of the networks for companies:CommunicationsUsing a network, different people can communicate with each other all over the world. People can communicate at very low cost via e-mail, chatting, telephone, video telephone, video conferencing, groupware & SMS services etc.

Sharing resourcesIn computer network, resources such as printers, scanners, fax machines, and modems can be shared among different users. Suppose several personals computers and a laser printer are connected to a network. Each users can access the printer.

In computer network, resources such as printers, scanners, fax machines, and modems can be shared among different users. Suppose several personals computers and a laser printer are connected to a network. Each users can access the printer.In a computer network, usually app programs and other software are stored on the central computer. Users connected to a network can access these programs or software.

Data sharingIn network environment, any authorized user can access data stored on other comp on the network for example on the internet, a large number of Internet users can access same data base.

Centralized Support and Administration Computer networking centralizes support, administration and network support tasks. Technical personnel manage all the nodes of the network, provide assistance, and troubleshoot network hardware and software errors. Network administrators ensure data integrity and devise systems to maintain the reliability of information through the network. They are responsible for providing high-end antivirus, anti-spyware and firewall software to the network users. Unlike a stand-alone system, a networked computer is fullymanagedand administered by a centralized server, which accepts all user requests and services them as required.

SecurityPerhaps your coveted mp3 collection is full of music protected by copyright; if so, you can easily set shared network files to where they cannot be copied but only used. This would mean that, while others on the network can enjoy the music they cannot copy it over to their machine. Also, individual directories can be assigned a password so that authorized users are allowed. This feature is great for offices, as you can store all business files on one network and not have to worry about employees having access to sensitive information over the network.

Wireless NetworkingWireless networking offers all the benefits of a traditional network are achieved without physically connecting the computers to each other or a central server. While they're still all connected, it is done with wireless technology, allowing for more mobility and convenience.

Multi-player GamesMany popular home computer games supportLAN modewhere friends and family can play together, if they have their computers networked.

Internet Telephone ServiceSo-calledVoice over IP(VoIP)services allow you to make and receive phone calls through your home network across the Internet, saving you money.

Mobile UsersMobile computers, such as notebook computers and personal digital assistants (PDAs), are one of the fastest-growing segments of the computer industry. Many owners of these computers have desktop machines back at the office and want to be connected to their home base even when away from home or en route. Since having a wired connection is impossible in cars and airplanes, there is a lot of interest in wireless networks. In this section we will briefly look at some of the uses of wireless networks.

Why would anyone want one? A common reason is the portable office. People on the road often want to use their portable electronic equipment to send and receive telephone calls, faxes, and electronic mail, surf the Web, access remote files, and log on to remote machines. And they want to do this from anywhere on land, sea, or air. For example, at computer conferences these days, the organizers often set up a wireless network in the conference area. Anyone with a notebook computer and a wireless modem can just turn the computer on and be connected to the Internet, as though the computer were plugged into a wired network. Similarly, some universities have installed wireless networks on campus so students can sit under the trees and consult the library's card catalog or read their e-mail.

Wireless networks are of great value to fleets of trucks, taxis, delivery vehicles, and repairpersons for keeping in contact with home. For example, in many cities, taxi drivers are independent businessmen, rather than being employees of a taxi company. In some of these cities, the taxis have a display the driver can see. When a customer calls up, a central dispatcher types in the pickup and destination points. This information is displayed on the drivers' displays and a beep sounds. The first driver to hit a button on the display gets the call.Thank you for Listening to our Group!!!

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