Networks and the Internet
A network is a collection of computers, and devices connected via communications and media and devices such as cables, telephone lines, modems, or other means.
Computers are networked together, so users can share resources, such as hardware devices, software programs, data, and information. Sharing resources saved time and money, for example, instead of purchasing one printer for every computer in a company, the firm can connect a single printer and all printers via a network: the network enables all of the computers to access the same printer.
Most business computers are networked together. These networks can be relatively small or quite extensive. A network that connects computer to computer in a limited geographic area, such as a school computer laboratory, office, or group of buildings, it is called a local area network-LAN.
A network that covers a large geographical areas, such as one that connects the district offices of a national Corp., is called a wide area network-WAN.
Database Software:
database software that allows the user to enter, retrieve, and update data in an organized and efficient manner. The software packages have flexible and Corey and reporting capabilities that let users access the data in different ways and create custom reports that include some or all of the information in the database.
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Presentation Graphics Software:
presentation graphics software allows the user to create slides for use in a presentation to a group. Using special project's that use projection devices, the slides are projected directly from the computer to the screen.
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Article Source: ArticlesBase.com - Networks and the Internet