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Monday, December 1, 2008

Personal Computer

A personal computer (PC) is any computer whose original sales price, size, and capabilities make it useful for individuals, and which is intended to be operated directly by an end user, with no intervening computer operator.

Today a PC may be a desktop, a laptop computer or a tablet computer. The most common operating system are microsoft Windows, Mac OS X and Linux, while the most common microprocessors are x-86 -compatible CPUs, ARM architecture CPUs and Power PC CPUs. Software applications for personal computers include word Processing, spreadsheets, databases, games, and a myriad of personal productivity and special-purpose software. Modern personal computers often have high-speed or dial-up connections to the Internet, allowing access to the Word Wide Web and a wide range of other resources.

A PC may be a home computer, or may be found in an office, often connected to a local area network. The distinguishing characteristics are that the computer is primarily used, interactively, by one person at a time. This is in contrast to the batch processing or time-sharing models which allowed large expensive systems to be used by many people, usually at the same time, or large data processing systems which required a full-time staff to operate efficiently.

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