# CD-ROM encyclopedia
**Wikidata**: [Q27963700](https://www.wikidata.org/wiki/Q27963700)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/CD-ROM_encyclopedia)  
**Source**: https://4ort.xyz/entity/cd-rom-encyclopedia

## Summary
A CD-ROM encyclopedia is an encyclopedia distributed on a CD-ROM, meaning it is both an encyclopedia and a CD-ROM-based product. It is classified as a subclass of both “encyclopedia” and “CD-ROM.”

## Key Facts
- CD-ROM encyclopedia is a subclass of **encyclopedia**.
- CD-ROM encyclopedia is a subclass of **CD-ROM**.
- A **CD-ROM** is a **pre-pressed compact disc containing computer data**.
- The Wikipedia title for this topic is **“CD-ROM encyclopedia.”**
- Wikipedia entries for “CD-ROM encyclopedia” exist in **English (en), Spanish (es), and French (fr)**.
- The entity has a **sitelink_count of 3**.
- The Google Knowledge Graph ID for CD-ROM encyclopedia is **/g/11cs972sdd**.
- Related entities include **Star Trek Omnipedia** and **The Star Trek Encyclopedia**.

## FAQs
### Q: What is a CD-ROM encyclopedia?
A: A CD-ROM encyclopedia is an encyclopedia that is distributed on a CD-ROM. It is categorized as both an encyclopedia and a CD-ROM-based item.

### Q: Is a CD-ROM encyclopedia the same thing as a CD-ROM?
A: A CD-ROM encyclopedia is not the same as a generic CD-ROM, but it is a subclass of CD-ROM. A CD-ROM is defined as a pre-pressed compact disc containing computer data.

### Q: Where can I find information about CD-ROM encyclopedias online?
A: The topic has a Wikipedia entry titled “CD-ROM encyclopedia.” That Wikipedia topic is available in English, Spanish, and French.

### Q: What are some related examples or topics?
A: Related entities listed for this topic include Star Trek Omnipedia and The Star Trek Encyclopedia. These are connected as related items in the provided source material.

## Why It Matters
CD-ROM encyclopedias matter because they represent a way of packaging and distributing encyclopedic information using a CD-ROM, which is a pre-pressed compact disc containing computer data. This classification places the concept at the intersection of a content type (an encyclopedia) and a storage/distribution medium (CD-ROM). In practical terms, the idea highlights how reference works can be delivered as computer-readable data rather than only as traditional formats. The existence of a dedicated Wikipedia topic (with versions in English, Spanish, and French) indicates that the concept is recognized as a distinct category. The related items—Star Trek Omnipedia and The Star Trek Encyclopedia—also show that CD-ROM encyclopedias can connect to specific subject domains and branded reference works. For knowledge organization, the dual subclassing (encyclopedia + CD-ROM) is significant because it supports clearer cataloging, retrieval, and linking across systems that track both media formats and content genres.

## Notable For
- Classified simultaneously as a subclass of **encyclopedia** and **CD-ROM**.
- Tied to the CD-ROM medium, defined as a **pre-pressed compact disc containing computer data**.
- Has a dedicated Wikipedia topic with multilingual coverage (**en, es, fr**).
- Linked in the provided material to related reference entities such as **Star Trek Omnipedia** and **The Star Trek Encyclopedia**.

## Body
### Classification and Type
- CD-ROM encyclopedia is categorized as:
  - A subclass of **encyclopedia**.
  - A subclass of **CD-ROM**.

### Parent Concepts
- **CD-ROM (class):** a pre-pressed compact disc containing computer data.
- **Encyclopedia (Thing):** listed in the source material as a creative work by **Håkan Jonson** and **Johannes Heldén**.

### Related Entities
- **Star Trek Omnipedia (Thing)** is listed as related.
- **The Star Trek Encyclopedia (Thing)** is listed as related.

### Identifiers and Knowledge Graph References
- **Wikipedia title:** CD-ROM encyclopedia
- **Wikipedia languages:** en, es, fr
- **Google Knowledge Graph ID:** /g/11cs972sdd
- **sitelink_count:** 3