# central processing unit

> central computer component that executes instructions

**Wikidata**: [Q5300](https://www.wikidata.org/wiki/Q5300)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Central_processing_unit)  
**Source**: https://4ort.xyz/entity/central-processing-unit

## Summary
A central processing unit (CPU) is the core computer component responsible for executing instructions. It acts as the fundamental "brain" of a computer, performing the arithmetic and logical operations necessary for its function.

## Key Facts
*   The central processing unit is the central computer component that executes instructions.
*   It is a subclass of both processor and computer hardware.
*   Common aliases include CPU, processor, and microprocesseur.
*   The central processing unit is a fundamental part of a computer.
*   It includes internal components such as processor design and CPU cache.
*   It connects physically with a CPU socket within a computer system.
*   Notable examples include the Am486 (inception 1993), Zilog Z80 (inception 1976), and Pentium (inception 1993).
*   The central processing unit is distinct from a general computer, processor, or data processing unit.

## FAQs
### Q: What is a central processing unit?
A: A central processing unit is the central component of a computer responsible for executing instructions. It acts as the "brain" of the computer, performing the arithmetic and logical operations necessary for its function.

### Q: What are some common aliases for a central processing unit?
A: Common aliases for a central processing unit include CPU, processor, and microprocesseur. It is also known by terms such as unidad de procesamiento central, UCT, Central Processing Unit, Zentralprozessor, 中央処理装置, and 中央演算装置.

### Q: What is the central processing unit a part of?
A: The central processing unit is a fundamental part of a computer. It is also classified as a type of processor and computer hardware, serving as an instance of a processor type.

### Q: What are some components or connections related to a central processing unit?
A: A central processing unit includes components like processor design and CPU cache. It connects physically with a CPU socket within a computer system to integrate with other hardware.

## Why It Matters
The central processing unit (CPU) is crucial because it is the central computer component responsible for executing instructions, making it the fundamental 'brain' of any general-purpose computing device. Its ability to perform arithmetic and logical operations is what allows computers to process data and run all forms of software, from operating systems to complex applications. Without a CPU, a computer would be unable to function, as it is the engine that drives all computational tasks. As a subclass of both 'processor' and 'computer hardware,' the CPU's design, including its internal processor design and CPU cache, directly influences the speed, efficiency, and overall capability of a computer system. Its continuous evolution, as seen in various processor types like the Am486, Pentium, and modern multi-core CPUs, has been a driving force behind advancements in technology. This evolution enables increasingly sophisticated computing experiences across all sectors, from personal devices to large-scale servers, highlighting its indispensable role in modern digital infrastructure.

## Notable For
*   Serving as the *central* computer component responsible for executing instructions, distinguishing it from other processing units that may have more specialized or peripheral roles.
*   Being a fundamental part of a computer, acting as its primary computational engine for arithmetic and logical operations.
*   Comprising specific internal components such as processor design and CPU cache, which are critical for its high-speed operation.
*   Connecting directly with a CPU socket, which is essential for its integration and communication within a computer system.
*   Being explicitly differentiated from a general "processor" or "data processing unit" in its specific role as the *central* processing unit.

## Body

### Definition and Function
The central processing unit (CPU) is defined as the central computer component that executes instructions. Its primary function is to perform arithmetic or logical operations, making it essential for the operation of any general-purpose device. The `wikidata_description` also states it is the "central computer component that executes instructions."

### Classification and Relationships
The central processing unit is classified as a subclass of:
*   Processor
*   Computer hardware

It is a fundamental part of a computer. It is an instance of a processor type.
A microsequencer is identified as a part of the control unit of a CPU.
The central processing unit is explicitly stated to be different from a general computer, processor, or data processing unit.

### Aliases and Identifiers
The central processing unit is known by several aliases and identifiers, including:
*   CPU
*   processor
*   unidad de procesamiento central
*   UCT
*   processeur
*   microprocesseur
*   Central Processing Unit
*   Zentralprozessor
*   中央処理装置
*   中央演算装置
Its `lex_id` is CPU, and `short_name` is CPU, ЦП. The `wikipedia_title` is "Central processing unit".

### Components and Connections
The central processing unit has internal components such as:
*   Processor design
*   CPU cache
It connects physically with a CPU socket within a computer system.

### Examples of CPUs and Related Entities
The following entities are identified as or related to central processing units:
*   XScale (microprocessor core)
*   Am486 (80486-class computer processor family by AMD, inception: 1993)
*   Am5x86 (486 computer chip made by AMD)
*   Athlon 64 X2 (dual-core desktop CPU designed by AMD)
*   Zilog Z80 (8-bit microprocessor, inception: 1976-03-00)
*   AMD Phenom II Mobile (notebook CPU by AMD)
*   AMD Opteron (server and workstation processor line by Advanced Micro Devices)
*   Sempron (central processing unit by AMD)
*   Turion 64 X2 (84-bit dual-coreus mobile CPU)
*   4-bit computing (computer architecture bit width)
*   HP FOCUS (central processing unit, country: United States)
*   StrongARM (family of computer microprocessors)
*   ARM9 (family of 32-bit processor cores)
*   AMD Mobile Athlon 64
*   AMD K4 (microarchitecture)
*   AMD K6 (microarchitecture)
*   Freescale DragonBall (microprocessor/microcontroller family)
*   AY-3-8500 (integrated circuit from General Instrument)
*   WDC W65C816 (8/16-bit microprocessor)
*   Pentium (brand of Intel microprocessors, inception: 1993)
*   R2000 (32-bit microprocessor chip set developed by MIPS Computer Systems, inception: 1986-01-00)
*   MOS Technology 6510 (8-bit microprocessor)
*   PowerPC (RISC instruction set architecture by AIM alliance)
*   PowerPC G4 (fourth generation of 32-bit PowerPC microprocessors)
*   Intel Xeon Phi 31S1P (CPU model by Intel, inception: 2013)
*   BCM5352 (router system-on-chip (SoC))
*   Boadcom BCM5352E (router system-on-chip (SoC))
*   Sega Virtua Processor (Sega Genesis enhancement chip)
*   PowerPC 400 (processor series)

### Visuals and Models
Visual assets associated with central processing units include:
*   Icon: `https://commons.wikimedia.org/wiki/Special:FilePath/Gnome-cpu.png`
*   Images: `https://commons.wikimedia.org/wiki/Special:FilePath/Alpha_AXP_21064_diephoto1.jpg`, `https://commons.wikimedia.org/wiki/Special:FilePath/2023_Intel_Core_i7_12700KF_(3).jpg` (top of a socketable desktop CPU), `https://commons.wikimedia.org/wiki/Special:FilePath/2023_Intel_Core_i7_12700KF_(4).jpg` (bottom of a socketable desktop CPU), `https://commons.wikimedia.org/wiki/Special:FilePath/AMD_A10-4600M_(AM4600DEC44HJ)_APU-top_PNr°0811.jpg` (laptop-oriented CPU with bare die), `https://commons.wikimedia.org/wiki/Special:FilePath/Collection_of_historical_CPUs.jpg` (historical CPUs).
*   Video: `https://commons.wikimedia.org/wiki/Special:FilePath/AMD_Ryzen_Threadripper_7970X_→_Ein_Rundumblick.webm`
*   3D Model: `https://commons.wikimedia.org/wiki/Special:FilePath/3D-Modell_Intel_C4004_20240623.stl`
The `commons_category` for CPUs is "Microprocessors".

## Schema Markup
```json
{
  "@context": "https://schema.org",
  "@type": "Thing",
  "name": "central processing unit",
  "description": "central computer component that executes instructions",
  "sameAs": [
    "https://en.wikipedia.org/wiki/Central_processing_unit",
    "https://www.freebase.com/m/01lr2",
    "https://stackoverflow.com/tags/cpu"
  ],
  "additionalType": [
    "https://schema.org/Processor",
    "https://schema.org/ComputerHardware"
  ]
}

## References

1. BabelNet
2. Quora
3. [Source](https://golden.com/wiki/Central_processing_unit-VJWE)
4. KBpedia
5. GF WordNet
6. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)
7. Wikibase TDKIV