In 2015, Frank Fischer, the CEO of Breadbox, died and efforts on the operating system stopped until later in 2017 when it was bought by blueway.Softworks.

[4] Commonly referred to as GeoWorks Ensemble, it was incompatible with the earlier 8-bit versions of GEOS for Commodore and Apple II computers, but provided numerous enhancements, including scalable fonts and multitasking on IBM PC XT- and AT-class PC clones.

GeoWorks saw a market opportunity to provide a graphical user interface for the 16 million older model PCs that were unable to run Microsoft Windows 2.x.

[6] In December 1992, NEC and Sony bundled an original equipment manufacturer (OEM) version of GeoWorks named the CD Manager with their respective CD-ROM players that sold as retail box add-on peripherals for consumers.

During that time, the popular single 3.5" self-booting disk that AOL was distributing could be hacked to boot the GeoWorks environment.

[11] After the release of Ensemble 2.01, GeoWorks ended support for the desktop version to focus on handhelds and smart devices.

[14] Their newest PC/GEOS, 4.x, is now a full productivity and internet suite, including web browser (named WebMagick) as well as email.

Other essential programs such as word processing, spreadsheet, flat file database and graphics applications are integrated into this package.

On 14 November 2015, Frank S. Fischer, the CEO and owner of Breadbox Ensemble LLC, died of a heart attack, some while after announcing plans to bring GEOS to Android.

In the US, Casio sold it under the name XL-7000 without the multi-lingual interface, but added an AOL client and some USA specific help files.

Brother LW-screen typewriters use PEN/GEOS and are the only version of the operating system that ships with vendor-provided drivers for scanner and it included a GEOS scanning application.

GEOS-SC was a 32-bit reduced instruction set computer (RISC) CPU smartphone, OS, and GUI for the Japanese cellphone market.

Originally built as GeoWorks' planned future OS and codenamed 'Liberty', GEOS-SC became the basis for cellphones designed by Mitsubishi Electric Company (MELCO) of Japan.