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WELCOME TO SCIENCE COMPUTER TECHNOLOGY
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 NETWORK    
  COMMUNICATION             DEVICES   TRANSMISSION         MEDIA    ADVANTAGES      OF NETWORK     DISADVANTAGE        OF NETWORK
                                                                               
                                                                  Definition of Network
  • A network is a collection of computers and devices connected together via communications devices and transmission media.
  • A network as a group of computers and associated devices that are connected by communications facilities.
                                      
                                    Definition of Computer Network  
 * A computer network is a communication system that connects two or more computers, and their peripheral devices  to  exchange information and share resources.
                                   
                                        How the data transmit in a Network:





A network also provides two principle benefits:

-the ability to communicate
A network supports communication among users in ways that other media cannot. E-mail, the most popular form of network communication, provides low-cost, printable correspondence with the capability for forwarding, acknowledgment, storage, retrieval, and attachments.

-the ability to share.
Sharing involves not only information (database records, e-mail, graphics, etc.), but also resources (applications, printers, modems, disk space, scanners, etc.) Through its ability to share, a network promotes collaboration

Uses For Computer Networks