# CPU card

> printed circuit board that contains a central processing unit

**Wikidata**: [Q5013756](https://www.wikidata.org/wiki/Q5013756)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/CPU_card)  
**Source**: https://4ort.xyz/entity/cpu-card

## Summary
A CPU card is a printed circuit board that integrates a central processing unit. It functions as a self-contained electrical component designed for processing data. This type of card combines the core computational power of a CPU with the physical structure of a circuit board.

## Key Facts
*   A CPU card is an instance of a printed circuit board.
*   It is classified as a subclass of a processor.
*   It contains a central processing unit, which is the central computer component that executes instructions.
*   The entity is related to the SuperCPU, a processor upgrade for the Commodore 64 and Commodore 128.
*   It has a Freebase ID of `/m/02q41d6`.
*   The entity has 3 sitelinks across various knowledge bases.
*   Wikipedia titles for CPU card exist in English, Hungarian, and Russian.
*   Its Microsoft Academic ID (discontinued) was 2781169092.

## FAQs
### Q: What is a CPU card?
A: A CPU card is a printed circuit board that contains a central processing unit. It is an electrical component designed to process data, integrating the CPU onto a physical board.

### Q: What type of component is a CPU card?
A: A CPU card is an instance of a printed circuit board. It is also classified as a subclass of a processor, as it incorporates a central processing unit for data processing.

### Q: Are there any specific examples of related CPU card technologies?
A: Yes, an example of a related entity is the SuperCPU. This was a processor upgrade specifically designed for the Commodore 64 and Commodore 128 computers.

## Why It Matters
The CPU card is significant because it represents the physical integration of a central processing unit onto a dedicated printed circuit board. This design approach allows for the creation of modular and self-contained processing units. By combining the CPU with its necessary support circuitry on a single board, CPU cards simplify system design, assembly, and maintenance, especially in embedded systems, industrial controls, or specialized computing environments where a compact, interchangeable processing core is beneficial. This integration provides a complete processing solution in a standardized form factor, enabling greater flexibility and ease of upgrade or replacement compared to a CPU chip alone. Its existence underscores the evolution of computing components towards more integrated and application-specific modules.

## Notable For
*   Being a printed circuit board specifically designed to contain a central processing unit.
*   Functioning as a self-contained processing module due to its integrated design.
*   Representing a physical integration of core processing power onto a standardized board.

## Body

### Definition and Core Function
A CPU card is fundamentally defined as a printed circuit board that contains a central processing unit (CPU). This integration means it is an electrical component specifically designed for processing data. The central processing unit itself is the core computer component responsible for executing instructions.

### Classification and Relationships
The CPU card is categorized within broader computing hierarchies:
*   **Instance Of:** It is an instance of a printed circuit board.
*   **Subclass Of:** It is a subclass of a processor.
*   **Parent Classes:** It is considered part of or parented by both `processor [class]` and `central processing unit [class]`.
    *   The `processor [class]` is an electrical component for processing data.
    *   The `central processing unit [class]` is the central computer component that executes instructions.

A related entity mentioned in the context of CPU cards is the SuperCPU. The SuperCPU was a processor upgrade specifically developed for the Commodore 64 and Commodore 128 computer systems.

### Identifiers and Presence
The CPU card entity is documented across various knowledge bases:
*   **Freebase ID:** `/m/02q41d6`
*   **Sitelink Count:** It has 3 sitelinks, indicating its presence in multiple linked data sources.
*   **Wikipedia Presence:** It has a Wikipedia title in multiple languages, including English (`en`), Hungarian (`hu`), and Russian (`ru`).
*   **Microsoft Academic ID (Discontinued):** Its identifier in the discontinued Microsoft Academic database was `2781169092`.