Often organizations use a network of personal computers, which allows users to operate independently or in cooperation with other computers, exchanging data and sharing resources. Such a setup is called a local area network (LAN).
Users who connect their computers via the phone lines must use a hardware called a modem to reconcile the inherent differences between computers and the phone system.
With a software called browser, a user can manipulate a mouse to point and click on screen text or pictures to explore the Internet, particularly the World Wide Web (WWW or the Web), an Internet subset of text, images, and sounds linked together to allow users to view a site.
A home page is the first page of a Web site.
Software is the planned, step-by-step set of instructions required to turn data into information. Application software can be used to solve a particular problem or to perform a particular task.
Computer programmers are people who design, write, test, and implement software. Organizations may pay computer programmers to write custom software, software that is specifically tailored to their needs.
Word processing software lets you create, edit, format, store, and print text and graphics in one document. It is those three words in the middle - edit, format, and store - that reveal the difference between word processing and plain typing.
An electronic spreadsheet, made up of columns and rows of numbers, automatically recalculates the results when a number is changed. This capability lets business people try different combinations of "what if..." numbers and obtain the results quickly.
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