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2. Central processing unit - Wikipedia

   en.wikipedia.org/wiki/Central_processing_unit

   A central processing unit (CPU), also called a central processor, main processor, or just processor, is the most important processor in a given computer. [1][2] Its electronic circuitry executes instructions of a computer program, such as arithmetic, logic, controlling, and input/output (I/O) operations. [3][4][5] This role contrasts with that ...

3. Laptop - Wikipedia

   en.wikipedia.org/wiki/Laptop

   A laptop computer or notebook computer, also known as a laptop or notebook, is a small, portable personal computer (PC). Laptops typically have a clamshell form factor with a flat-panel screen on the inside of the upper lid and an alphanumeric keyboard and pointing device on the inside of the lower lid.

4. Dell XPS - Wikipedia

   en.wikipedia.org/wiki/Dell_XPS

   The laptop expanded to a full desktop set, including a detachable Bluetooth keyboard, Bluetooth mouse, and radio-frequency Media Center remote. It was praised for the high-quality sound system which included 8 separate ¾" speakers below the screen and a 1¾" subwoofer on the bottom of the machine, ported to the right-hand side.

5. Processor (computing) - Wikipedia

   en.wikipedia.org/wiki/Processor_(computing)

   Processor (computing) In computing and computer science, a processor or processing unit is an electrical component (digital circuit) that performs operations on an external data source, usually memory or some other data stream. [1] It typically takes the form of a microprocessor, which can be implemented on a single or a few tightly integrated ...

6. Calculator - Wikipedia

   en.wikipedia.org/wiki/Calculator

   For other uses, see Calculator (disambiguation). An electronic pocket calculator with a seven-segment liquid-crystal display (LCD) that can perform arithmetic operations. A modern scientific calculator with an LCD. An electronic calculator is typically a portable electronic device used to perform calculations, ranging from basic arithmetic to ...

7. Computer hardware - Wikipedia

   en.wikipedia.org/wiki/Computer_hardware

   Computer hardware. Computer hardware includes the physical parts of a computer, such as the central processing unit (CPU), random access memory (RAM), motherboard, computer data storage, graphics card, sound card, and computer case. It includes external devices such as a monitor, mouse, keyboard, and speakers. [1][2]