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2. 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 ...

3. 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 ...

4. 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.

5. Computer hardware - Wikipedia

   en.wikipedia.org/wiki/Computer_hardware

   Computer hardware. PDP-11 CPU board. 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]

6. Operating system - Wikipedia

   en.wikipedia.org/wiki/Operating_system

   An operating system ( OS) is system software that manages computer hardware and software resources, and provides common services for computer programs . Time-sharing operating systems schedule tasks for efficient use of the system and may also include accounting software for cost allocation of processor time, mass storage, peripherals, and ...

7. Microprocessor - Wikipedia

   en.wikipedia.org/wiki/Microprocessor

   A microprocessor is a computer processor for which the data processing logic and control is included on a single integrated circuit (IC), or a small number of ICs. The microprocessor contains the arithmetic, logic, and control circuitry required to perform the functions of a computer's central processing unit (CPU).