GEOS (16-bit operating system)
GEOS is a computer operating environment, graphical user interface, and suite of application software. Originally released as PC/GEOS, it runs on DOS-based, IBM PC compatible computers. The package later became GeoWorks Ensemble, then NewDeal Office, and is now Breadbox Ensemble. Versions for some handheld platforms were also released.
PC/GEOS was first created by Berkeley Softworks, who later became GeoWorks Corporation. Version 4.0 was developed in 2001 by Breadbox Computer Company, LLC, and named Breadbox Ensemble.
PC/GEOS should not be confused with the 8-bit GEOS product from the same company, which runs on the Commodore 64 and other computers using MOS 6502-compatible microprocessors.
In 1990, GeoWorks released GEOS for IBM PC compatible systems, PC/GEOS. Also called 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 even on 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.