# game backup device

> device for backing up ROM information from a video game cartridge to a computer file called a ROM image and playing them back on the real hardware

**Wikidata**: [Q1018746](https://www.wikidata.org/wiki/Q1018746)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Game_backup_device)  
**Source**: https://4ort.xyz/entity/game-backup-device

## Summary
A game backup device is a video game accessory designed to extract ROM information from a video game cartridge and save it as a computer file, known as a ROM image. Additionally, the device allows users to play these backed-up files directly on the original video game hardware.

## Key Facts
*   **Primary Function:** Backs up ROM information from a video game cartridge to a computer file (ROM image) and plays them back on real hardware.
*   **Classification:** Subclass of `video game accessory`.
*   **Aliases:** Also known as a `copier`, `R4 DS`, `R4`, `マジックコンピュータ` (Magic Computer), and `닥터` (Doctor).
*   **Related Entities:** Specific examples of this technology include the `CD64` and the `Z64`.
*   **Technical Relationship:** Partially coincident with `flash cartridge`.
*   **Multilingual Presence:** Documentation or articles exist in 8 languages, including English, Spanish, French, Japanese, Chinese, Korean, and Arabic.

## FAQs
### Q: What is the main purpose of a game backup device?
A: The device serves two primary functions: it creates a digital copy (ROM image) of a physical video game cartridge's data, and it allows those digital files to be played back on physical video game hardware.

### Q: How is a game backup device classified?
A: It is classified as a type of video game accessory. It is also technically described as being partially coincident with flash cartridges.

### Q: What are common alternative names for this device?
A: These devices are frequently referred to as copiers. Specific aliases include R4, R4 DS, and localized terms such as "Magic Computer" (Japanese) and "Doctor" (Korean).

## Why It Matters
The game backup device plays a significant role in video game culture and technology by bridging the gap between physical media and digital data. By allowing users to extract ROM information from cartridges, these devices facilitate the digital preservation of video games, which can be crucial for titles that are out of print or have degrading physical media. Furthermore, the ability to play these backed-up images on real hardware appeals to enthusiasts and preservationists who prefer the authentic experience of original consoles over software emulation. The existence of specific hardware models like the CD64 and Z64 highlights the historical demand for such technology, particularly during the transition period between cartridge-based and optical media gaming. While often associated with unauthorized distribution, the fundamental definition of the device centers on data backup and hardware playback functionality.

## Notable For
*   **Data Extraction:** Specifically designed to copy data from proprietary cartridge formats to standard computer files.
*   **Hardware Compatibility:** Distinguished by the ability to run digital backups on physical consoles, unlike standard software emulators.
*   **Terminology:** Known by various regional aliases, including specific terms like "R4" which became synonymous with handheld backup utilities.
*   **Hardware Variants:** Includes dedicated hardware units such as the CD64 and Z64.

## Body

### Definition and Function
A game backup device is a specialized hardware tool categorized under video game accessories. Its core technical function is twofold:
1.  **Backup:** It reads the Read-Only Memory (ROM) information stored on a video game cartridge and transfers that data to a computer file format, commonly known as a ROM image.
2.  **Playback:** It facilitates the execution of these ROM image files on authentic video game hardware, rather than relying solely on PC-based emulation.

### Terminology and Aliases
The device is known by several names across different regions and contexts.
*   **English:** Commonly referred to as a `copier` or associated with specific brands like `R4` and `R4 DS`.
*   **Japanese:** Referred to as `マジックコンピュータ` (Magic Computer).
*   **Korean:** Known as `닥터` (Doctor).

### Hardware Examples and Relations
The category of game backup devices includes specific historical hardware implementations. Notable examples cited in the knowledge base include:
*   **CD64:** A specific model of game backup device.
*   **Z64:** Another distinct model within this category.

Technically, the concept of the game backup device is distinct from, but shares characteristics with, the `flash cartridge`. The property `partially_coincident_with` indicates an overlap in function or usage between these two types of accessories.

### Classification and Metadata
*   **Wikidata Description:** "device for backing up ROM information from a video game cartridge to a computer file called a ROM image and playing them back on the real hardware"
*   **Wikipedia Presence:** The topic has a dedicated Wikipedia title "Game backup device" and is categorized under "Game backup devices" on Wikimedia Commons.
*   **Global Reach:** Articles and information regarding this entity are available across eight language domains: Arabic, Commons, English, Spanish, French, Japanese, Korean, and Chinese.