Xerox Daybreak
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Xerox Daybreak
Xerox Daybreak
Xerox 6085
Xerox 6085 PCS, Xerox 1186
Developer Xerox
Manufacturer Xerox
Type Workstation
Release date 1985; 33 years ago (1985)
Introductory price $4,995 (equivalent to $11,365 in 2017)[1]
Discontinued 1989
Operating system ViewPoint
CPU Mesa 8 MHz processor, Intel 80186 auxiliary processor for PC emulation
Memory 1.1 MB, expandable to 3.7 MB; 4 MB for Xerox 6085-2
Storage 10, 20, 40, or 80 MB hard drive and 5¼-inch floppy disk drive; additional 100 and 190 MB option for Xerox 6085-2
Display 15 or 19 inch (80 pixels per inch) monochrome displays
Connectivity Ethernet
Predecessor Xerox Star

Xerox Daybreak (also Xerox 6085 PCS, Xerox 1186) is a workstation computer marketed by Xerox from 1985 to 1989.



The Daybreak runs the ViewPoint (later GlobalView) GUI and was used extensively throughout Xerox until being replaced by Suns and PCs. Although being years ahead of its time, it was never a major commercial success. The proprietary closed architecture and Xerox's reluctance to release the Mesa development environment for general use stifled any third-party development.

A fully configured 6085 comes with an 80MB hard disk, 3.7MB of RAM, a 5¼-inch floppy disk drive, an Ethernet controller, and a PC emulator card containing an 80186 CPU. The basic system comes with 1.1MB of RAM and a 10MB hard disk.

Daybreak is the last machine that was released in the D* (pronounced D-Star) series of machines, at least some of which shared an instruction set architecture known as Wildflower, designed by Butler Lampson. Machines in this series include, in order, Dolphin, Dorado, Dicentra, Dandelion, Dandetiger, Daybreak, the never-manufactured Daisy, and "a multiprocessor system used in a high-end printing system".[2]

The Daybreak was sold as a Xerox 1186 workstation when configured as a Lisp machine. It was sold as the Xerox 6085 PCS (Professional Computer System) or Viewpoint 6085 PCS (Professional Computer System) when sold as an office workstation running the Viewpoint system (based on the Star software originally developed for the Xerox Star.)

See also


  1. ^ PC Mag. Ziff Davis, Inc. p. 50. Retrieved . 
  2. ^ The Wildflower Web Site. DigiBarn.

External links

  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.



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