# computer case

> enclosure that contains most of the components of a computer

**Wikidata**: [Q3975](https://www.wikidata.org/wiki/Q3975)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Computer_case)  
**Source**: https://4ort.xyz/entity/computer-case

## Summary
A computer case is an enclosure that contains most of the components of a computer. It serves as the protective housing for internal hardware and provides mounting points for components like the motherboard, power supply, and drives. Computer cases come in various form factors and materials, including steel, aluminum, and occasionally tempered glass or acrylic for windows.

## Key Facts
- Computer cases are classified as electrical enclosures and computer hardware, serving as the physical housing for computer components
- Common materials used include steel, aluminum, and occasionally tempered glass or poly(methyl methacrylate) for windows
- Standard form factors include ATX, with variations like computer towers that stand vertically upright
- Computer cases typically include drive bays, expansion slots, cable grommets, and mounting points for components
- The industry standard for computer case screws is a specific size used for attaching components to the chassis
- Computer cases connect with components including computer fans, power supply units, motherboards, and expansion cards
- The term "beige box" refers to a common aesthetic style in personal computer cases
- Computer cases may include features like air filters, indicator lights, bezels, and handles
- The concept of case modding involves customizing computer cases for aesthetic or functional purposes
- Computer cases have a sitelink count of 44 across Wikimedia projects and are documented in 10 Wikipedia languages

### Q: What is the primary purpose of a computer case?
A: A computer case provides physical protection and organization for computer components while facilitating proper airflow and electromagnetic shielding. It serves as the structural framework that holds and connects all internal hardware components.

### Q: What materials are commonly used to make computer cases?
A: Computer cases are typically made from steel or aluminum for durability and electromagnetic shielding. Some cases incorporate tempered glass or acrylic windows for aesthetic purposes, while plastic is used for certain components and panels.

### Q: What are the main types of computer cases?
A: The main types include ATX cases (standard form factor), computer towers (vertical upright cases), and rack-mounted cases for server applications. Cases also vary by size from small form factor to full tower configurations.

## Why It Matters
Computer cases are fundamental to modern computing infrastructure, serving as the essential protective housing that enables reliable operation of complex electronic systems. Without proper cases, computer components would be vulnerable to physical damage, dust contamination, electromagnetic interference, and inadequate cooling. The case provides the structural framework that allows components to be securely mounted and connected, while also managing heat dissipation through strategic airflow design. Beyond basic functionality, computer cases have evolved to support aesthetic customization through case modding, allowing users to personalize their systems. The standardization of case form factors like ATX has enabled component interoperability across manufacturers, driving innovation in the computer hardware industry. Computer cases also play a critical role in electromagnetic compatibility, acting as Faraday cages to prevent interference with other electronic devices. As computers have become increasingly powerful and compact, case design has had to evolve to balance thermal management, noise reduction, and space efficiency, making it a crucial element in the ongoing advancement of computing technology.

## Notable For
- Standardizing computer component mounting and connectivity through form factors like ATX
- Enabling case modding culture, which has become a significant aspect of PC enthusiast communities
- Providing electromagnetic shielding through metal construction, protecting both the computer and surrounding devices
- Supporting the evolution from bulky beige boxes to modern designs with tempered glass panels and RGB lighting
- Facilitating proper thermal management through strategic airflow design and mounting points for cooling solutions

## Body
### Classification and Structure
Computer cases are classified as electrical enclosures and fall under the broader category of computer hardware. They serve as the primary structural component that houses and protects the internal workings of a computer system. The case provides mounting points and connectivity for essential components including the motherboard, power supply unit, storage drives, and expansion cards.

### Materials and Construction
The most common materials used in computer case construction are steel and aluminum, chosen for their durability, structural integrity, and electromagnetic shielding properties. Steel offers superior shielding and rigidity, while aluminum provides a lighter weight option. Some modern cases incorporate tempered glass or poly(methyl methacrylate) for side windows, allowing users to view internal components. Plastic is used for various panels, drive bays, and decorative elements.

### Form Factors and Types
Computer cases come in standardized form factors, with ATX being the most prevalent. The ATX form factor defines the dimensions and mounting points for components, ensuring compatibility across different manufacturers. Computer towers represent a common vertical orientation, while rack-mounted cases are designed for server applications in data centers. Cases range from small form factor designs for compact builds to full tower configurations for high-end systems with extensive cooling and multiple expansion cards.

### Component Integration
A computer case provides specific mounting points and connectivity for various components. Drive bays accommodate storage devices, expansion slots allow for graphics cards and other add-in cards, and cable grommets help manage internal wiring. Cases include mounting points for power supplies and motherboards, with standardized screw patterns ensuring compatibility. The case also provides mounting locations for cooling fans and, in some designs, liquid cooling radiators.

### Connectivity and Features
Computer cases connect with essential components through standardized interfaces. They provide mounting and power connections for computer fans, power supply units, and motherboards. Expansion cards plug into the motherboard through slots that extend to the case's rear panel. Cases may include front panel connectors for USB ports, audio jacks, and power/reset buttons. Some designs incorporate handles for portability, air filters for dust prevention, and indicator lights for power and drive activity.

### Electromagnetic Considerations
The metal construction of computer cases provides electromagnetic shielding, protecting internal components from external interference and preventing the computer from emitting disruptive electromagnetic radiation. This shielding function is particularly important in environments with sensitive electronic equipment. The case acts as a Faraday cage, containing electromagnetic emissions within specified limits to comply with regulatory requirements.

### Customization and Aesthetics
Case modding has become a significant aspect of computer culture, with enthusiasts modifying cases for improved cooling, unique aesthetics, or enhanced functionality. Modifications can include custom paint jobs, acrylic windows, LED lighting, and even complete case fabrication. The trend toward transparent side panels has made internal component aesthetics increasingly important, driving demand for visually appealing hardware designs.

### Industry Standards
The computer case industry follows various standards to ensure component compatibility. The ATX specification, maintained by Intel, defines not only motherboard dimensions but also case form factors, power supply mounting, and connector placements. These standards enable users to mix and match components from different manufacturers while ensuring proper fit and functionality. The standardization of case screws and mounting patterns further contributes to this interoperability.

## Schema Markup
```json
{
  "@context": "https://schema.org",
  "@type": "Thing",
  "name": "computer case",
  "description": "enclosure that contains most of the components of a computer",
  "sameAs": [
    "https://www.wikidata.org/wiki/Q1067",
    "https://en.wikipedia.org/wiki/Computer_case"
  ],
  "additionalType": "electrical enclosure"
}

## References

1. Freebase Data Dumps. 2013
2. KBpedia