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performs arithmetic computations and logicaloperations.
includes addition, subtraction, division, and multiplication.

Central processing unit

microprocessor or central process; the brains of the computer.

Circuit board

simply a thin plate or board that contains electronic components.


an electronic device that recieves data(input), processes data, stores data, and produces a result(output).

Control unit

the boss, so to speak, and coordinates all of the processor's activities.


text, numbers, sounds, images, or video.

Hard disk

used to store data inside the computers although removable hard disks are also available.


actual machine---- wires, transitors, and curcuits.


computer receives data through input device, processes the data, store the data on a storage device, and produces output.


found in the motherboard, saving information permanently.

Mobile devices

can fit into the palm of ypur hand.


system board that mount into the case; circuit board the contains many integral components.

Notebook computer

small personal computers that contain the monitor and a built in keyboard.

Random access Memory

main memory and primary memory.

Read-only memory

another type of memory essential for computer operations.


used by small to medium-size companies and can support a few users or hundreds of users. Web pages


consist of instructions or programs for controlling the computer.


the fastest type of computer.

Tablet PC

a personal computer similar in size an dthickness to a notepad.

USB flash drive

popular solid-state storage medium.

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