The Free On-line Dictionary of Computing (30 December 2018):

Honeywell
Datamatic Corporation

    A US company known for its mainframes and
   operating systems.

   The company's history is long and tortuous, with many mergers,
   acquisitions and name changes.  A company formed on 1886-04-23
   to make furnace regulators eventually merged in 1927 with
   another company formed in 1904 by a young plumbing and heating
   engineer named Mark Honeywell who was perfecting the heat
   generator.

   A 1955 joint venture with Raytheon Corp., called Datamatic
   Corporation, marked Honeywell's entry into the computer
   business.  Their first computer was the D-1000.  In 1960
   Honeywell bought out Raytheon's interest and the name changed
   to Electronic Data Processing (EDP) then in 1963 it was
   officially renamed Honeywell Inc.

   In 1970 Honeywell merged its computer business with General
   Electric's to form Honeywell Information Systems.  In 1986 a
   joint venture with the french company Bull and japanese NEC
   Corporation created Honeywell Bull.  By 1991 Honeywell had
   withdrawn from the computer business, focussing more on
   aeropspace.

   CII Honeywell was an important department.  Honeywell
   operating systems included GCOS and Multics.

   See also: brain-damaged.

   History
   (http://www51.honeywell.com/honeywell/about-us/our-history.html).

   (2009-01-14)