# monochrome monitor

> computer monitor capable of displaying only two colors

**Wikidata**: [Q1133650](https://www.wikidata.org/wiki/Q1133650)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Monochrome_monitor)  
**Source**: https://4ort.xyz/entity/monochrome-monitor

## Summary
A monochrome monitor is a computer monitor capable of displaying only two colors. It functions as a stand-alone electronic visual display for computers that connects via a cable and is usually externally powered. This specific display technology is a subclass of the broader computer monitor category and includes historical implementations like the IBM 5151.

## Key Facts
- **Definition**: A computer monitor capable of displaying only two colors.
- **Classification**: Subclass of "computer monitor," which is a stand-alone electronic visual display connected via cable and usually externally powered.
- **Color Specification**: Displays monochrome output, specifically applying to the electronic visual display part.
- **Notable Instance**: The IBM 5151 is a specific class of monochrome monitor shipped with the original IBM Personal Computer.
- **Family Grouping**: The Apple monochrome monitor family is a recognized group of these devices.
- **Associated Hardware**: The Compaq Portable, an early portable computer, is a subsidiary entity associated with this monitor type.
- **Freebase ID**: /m/03cbbk9 (Reference: , published 2013-10-28).
- **Wikidata ID**:  (implied by reference).
- **Sitelink Count**: 11 total language links.
- **Wikipedia Title**: "Monochrome monitor".
- **Supported Languages**: Catalan, English, Spanish, Persian, Finnish, Italian, Korean, Portuguese, Russian, Chinese, and Chinese (Yue).
- **Microsoft Academic ID**: 2778659583 (discontinued).
- **Aliases**: Monitor monocromatico, Pantalla de fosforo, Monitor monócromo, Pantalla de fósforo, Monitor monocromático, écran d'ordinateur monochrome, 단색 모니터, 모노크롬 디스플레이.

## FAQs
**What is the primary visual limitation of a monochrome monitor?**
These devices are strictly capable of displaying only two colors, distinguishing them from color monitors that can render a full spectrum. This limitation applies specifically to the electronic visual display component of the hardware.

**Which specific computer models or families utilized this display technology?**
The technology was integral to the original IBM Personal Computer via the IBM 5151 model and was also used in the Apple monochrome monitor family. Additionally, early portable computers like the Compaq Portable utilized these displays.

**How is this entity identified across different knowledge databases?**
The entity is tracked under the Freebase ID /m/03cbbk9 and the Microsoft Academic ID 2778659583, though the latter is now discontinued. It maintains a Wikipedia presence with 11 language versions and a total sitelink count of 11.

**What are the common alternative names for this device in other languages?**
It is known as "Monitor monocromático" in Spanish, "écran d'ordinateur monochrome" in French, and "단색 모니터" in Korean. Other variations include "Pantalla de fósforo" and "모노크롬 디스플레이."

## Why It Matters
The monochrome monitor represents a foundational stage in personal computing history, establishing the standard for early visual output before color became ubiquitous. By limiting display to two colors, these devices offered high contrast and readability for text-based interfaces, which was critical for the productivity software of the era. Their integration into seminal machines like the IBM 5151 and the Compaq Portable helped define the form factor and user experience of the first generation of personal and portable computers. Understanding this entity provides context for the evolution of display technology and the hardware constraints that shaped early software development.

## Notable For
- **Strict Color Limitation**: Defined by the specific capability to display only two colors, a defining technical constraint of the era.
- **Historical Integration**: Served as the primary display for the original IBM Personal Computer through the IBM 5151 model.
- **Portability Pioneer**: Enabled the visual interface for the Compaq Portable, one of the first successful portable computers.
- **Multilingual Recognition**: Maintains Wikipedia articles across 11 distinct languages, indicating global historical significance.
- **Distinct Classification**: Formally categorized as a subclass of "computer monitor" with specific qualifiers regarding its electronic visual display part.

## Body

### Definition and Classification
A monochrome monitor is technically defined as a computer monitor capable of displaying only two colors. It falls under the broader class of "computer monitor," which describes a stand-alone electronic visual display for computers. These devices are characterized by their connection via a cable and their typical requirement for external power. The specific property of "monochrome" applies directly to the electronic visual display part of the unit. This classification distinguishes it from color displays and places it as a specific subclass within the hierarchy of visual computing hardware.

### Historical Implementations and Families
Several specific hardware families and models are directly linked to this entity. The IBM 5151 is a notable class of monochrome monitor that was shipped with the original IBM Personal Computer, cementing its role in the early PC market. The Apple monochrome monitor family represents another distinct grouping of these devices. In the realm of portable computing, the Compaq Portable is identified as an early portable computer that utilized this display technology. These entities serve as concrete examples of the monochrome monitor's application in both desktop and portable form factors during the early era of personal computing.

### Technical Properties and Identifiers
The entity possesses specific technical and database identifiers that track its existence across knowledge systems. The color attribute is set to "monochrome," with the qualifier that this applies to the "electronic visual display." In terms of digital identification, the Freebase ID is recorded as /m/03cbbk9, with a reference to publication  dated October 28, 2013. The Microsoft Academic ID is 2778659583, though this identifier is noted as discontinued. The entity has a total sitelink count of 11, reflecting its presence in various language editions of Wikipedia.

### Global Presence and Linguistic Variations
The concept of the monochrome monitor is documented in 11 different languages, demonstrating its international recognition. The Wikipedia title "Monochrome monitor" is available in Catalan, English, Spanish, Persian, Finnish, Italian, Korean, Portuguese, Russian, Chinese, and Chinese (Yue). The entity is known by various aliases depending on the language and region. These include "Monitor monocromatico," "Pantalla de fosforo," "Monitor monócromo," and "Pantalla de fósforo" in Spanish and Portuguese contexts. French speakers refer to it as "écran d'ordinateur monochrome," while Korean terminology includes "단색 모니터" and "모노크롬 디스플레이." These variations highlight the global adoption of the technology and the specific terminology used to describe it across different linguistic communities.

## References

1. Freebase Data Dumps. 2013