# IBM 4690 OS

> operating system formerly developed by IBM

**Wikidata**: [Q5968682](https://www.wikidata.org/wiki/Q5968682)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/4690_Operating_System)  
**Source**: https://4ort.xyz/entity/ibm-4690-os

## Summary
IBM 4690 OS is a discontinued operating system developed by IBM in 1993, based on the FlexOS platform. It was designed to run on the IBM 4694 hardware and succeeded the IBM 4680 OS. The system was later acquired by Toshiba in 2012.

## Key Facts
- **Developer**: IBM (1993–2012), later acquired by Toshiba
- **Inception**: 1993
- **Based on**: FlexOS
- **Platform**: IBM 4694
- **Replaced**: IBM 4680 OS
- **Aliases**: 4690 Operating System, 4690 OS
- **Programming Language**: Q15777 (likely referring to a specific language or identifier)
- **Wikipedia Availability**: Available in Catalan and English

## FAQs
### Q: What hardware did IBM 4690 OS run on?
A: IBM 4690 OS was designed to run on the IBM 4694 hardware system.

### Q: Who developed IBM 4690 OS?
A: IBM developed IBM 4690 OS, which was later acquired by Toshiba in 2012.

### Q: What operating system did IBM 4690 OS replace?
A: IBM 4690 OS succeeded the IBM 4680 OS.

### Q: Is IBM 4690 OS still in use today?
A: No, IBM 4690 OS is no longer in use as it was discontinued and later acquired by Toshiba.

### Q: What was IBM 4690 OS based on?
A: IBM 4690 OS was based on the FlexOS platform, a modular real-time multiuser multitasking operating system.

## Why It Matters
IBM 4690 OS was a significant operating system in the 1990s, designed for real-time and multitasking environments. It was part of IBM's broader software solutions for retail and industrial applications. The transition of ownership from IBM to Toshiba marked a shift in the system's lifecycle, reflecting broader industry trends in technology acquisition and legacy system management. While it is no longer actively used, it represents a historical milestone in IBM's operating system development.

## Notable For
- **Successor to IBM 4680 OS**: IBM 4690 OS was an evolution of IBM's earlier operating system, indicating IBM's commitment to improving retail and industrial software solutions.
- **FlexOS Foundation**: Built on FlexOS, a modular and real-time operating system, IBM 4690 OS inherited advanced features for multiuser and multitasking environments.
- **Toshiba Acquisition**: The transfer of IBM 4690 OS to Toshiba in 2012 highlights the broader trend of corporate mergers and acquisitions in the tech industry.

## Body
### Overview
IBM 4690 OS was an operating system developed by IBM in 1993, based on the FlexOS platform. It was designed to run on the IBM 4694 hardware system and succeeded the IBM 4680 OS. The system was later acquired by Toshiba in 2012, marking a shift in ownership.

### Development and Acquisition
- **Developed by IBM**: IBM 4690 OS was initially developed by IBM and released in 1993.
- **Acquired by Toshiba**: In 2012, Toshiba acquired IBM's operating system division, including IBM 4690 OS.
- **Based on FlexOS**: The operating system was built on the FlexOS platform, a modular real-time multiuser multitasking operating system first developed in 1986.

### Technical Specifications
- **Platform**: IBM 4694
- **Programming Language**: Q15777 (likely referring to a specific language or identifier used in development)
- **Aliases**: 4690 Operating System, 4690 OS

### Wikipedia and Online Presence
- **Wikipedia Availability**: The operating system has Wikipedia entries in Catalan and English.
- **Official Website**: The system's official website was hosted by IBM, though it is no longer active.

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