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اختي حصلت لج بس كلهم فيهم كلمات شوي صعبه

هذا اول واحد
A computer is a device that accepts information (in the form of digitalized data) and manipulates it for some result based on a program or sequence of instructions on how the data is to be processed. Complex computers also include the means for storing data (including the program, which is also a form of data) for some necessary duration. A program may be invariable and built into the computer (and called logic circuitry as it is on microprocessors) or different programs may be provided to the computer (loaded into its storage and then started by an administrator or user). Today's computers have both kinds of programming.

هذا الثاني

Computer: any general-purpose machine that processes data according to a set of instructions that is stored internally either temporarily or permanently, including, but not limited to, a general purpose computer, workstation, laptop computer, personal computer, set top box, web access device (such as WEB TV.TM. (Microsoft Corporation)), cable television, satellite television, broadband network, an electronic viewing or listening device, any other type of computer, wireless devices, such as a personal digital assistant (PDA), cellular or mobile telephones, electronic handheld units for the wireless receipt and/or transmission of data, such as a BlackBerry® (Research In Motion Limited), or the like.

وهاي روابط فيها المعنى

http://www.wisegeek.com/what-is-a-computer.htm

هذا فيه الشرح كامل وبطريقه سهله
http://www.ncte.ie/documents/advices...er(June07).pdf

وهذا شوي اسهل عن اللي فوق

Technically, a computer is a programmable machine. This means it can execute a programmed list of instructions and respond to new instructions that it is given. Today, however, the term is most often used to refer to the desktop and laptop computers that most people use. When referring to a desktop model, the term "computer" technically only refers to the computer itself -- not the monitor, keyboard, and mouse. Still, it is acceptable to refer to everything together as the computer. If you want to be really technical, the box that holds the computer is called the "system unit."

Some of the major parts of a personal computer (or PC) include the motherboard, CPU, memory (or RAM), hard drive, and video card. While personal computers are by far the most common type of computers today, there are several other types of computers. For example, a "minicomputer" is a powerful computer that can support many users at once. A "mainframe" is a large, high-powered computer that can perform billions of calculations from multiple sources at one time. Finally, a "supercomputer" is a machine that can process billions of instructions a second and is used to calculate extremely complex calculations.

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