The United States District Court for the District of Minnesota released its judgement on October 19, 1973, finding in Honeywell v. Sperry Rand that the ENIAC patent was a derivative of John Atanasoff's invention.

The ABC was largely forgotten until it became the focus of the lawsuit Honeywell v. Sperry Rand, the ruling of which invalidated the ENIAC patent ( and several others ) as, among many reasons, having been anticipated by Atanasoff's work.

For a variety of reasons ( including Mauchly's June 1941 examination of the Atanasoff – Berry Computer, prototyped in 1939 by John Atanasoff and Clifford Berry ), US patent 3, 120, 606 for ENIAC, granted in 1964, was voided by the 1973 decision of the landmark federal court case Honeywell v. Sperry Rand, putting the invention of the electronic digital computer in the public domain and providing legal recognition to Atanasoff as the inventor of the first electronic digital computer.

Atansoff invented the first digital computer in the world during the 1930s in the Iowa State College, but it took a lengthy court battle for achieving legal patent to 1973 when the case of Honeywell v. Sperry Rand was solved and the verdict named Atansoff with the title the inventor of the computer, the decision was never appealed, thus giving him the legal right to be called as such in the United States.

: For a more detailed account, see Honeywell v. Sperry Rand.

In the 1973 decision of Honeywell v. Sperry Rand, a federal judge named Atanasoff the inventor of the electronic digital computer.

Atanasoff was deposed and testified at trial in the later action Honeywell v. Sperry Rand.

Following the resolution of Honeywell v. Sperry Rand, Atanasoff was warmly honored by Iowa State College, which had since become Iowa State University, and more awards followed.

From 1967 to 1973 the corporation was involved in an acrimonious antitrust lawsuit with Honeywell, Inc. ( see: Honeywell v. Sperry Rand ).

* Honeywell v. Sperry Rand, a landmark U. S. federal court case that in April 1973 invalidated the 1964 patent for the ENIAC

** Honeywell International v Hamilton Sundstrand Corp .( doc )

Mollenhoff's book gives the Atanasoff perspective of the 1973 federal court decision of Honeywell v. Sperry Rand that ruled the ENIAC computer patent invalid, and increased attention to Atanasoff's work.

With the computer industry more than 30 years old in the 1970s, the history of computing had become a hot topic with the revelation of the Colossi in England — electronic digital computers that predated the ENIAC in the United States — and the controversy spawned by the Honeywell v. Sperry Rand decision, which invalidated the ENIAC patent.

In 1967 Honeywell sued Sperry Rand in an attempt to break their ENIAC patents, arguing the ABC constituted prior art.

There are several major vendors of flight avionics, including Honeywell ( which now owns Bendix / King ), Rockwell Collins, Thales Group, Garmin and Avidyne Corporation.

When it was first adopted by the U. S. military, a Honeywell engineer sat in the back seat with bolt cutters to disconnect the autopilot in case of emergency.

Early implementations were for the DEC PDP-7 and PDP-11 minicomputers using early Unix, and Honeywell 36-bit mainframes running the operating system GCOS.

The typeless nature of B made sense on the Honeywell, PDP-7 and many older computers, but was a problem on the PDP-11 because it was difficult to elegantly access the character data type that the PDP-11 and most modern computers fully support.

The effort was sufficiently complete that during the summer of 1973 the Unix kernel for the PDP-11 was rewritten in C. During the 1972 – 73 period there was a need to port to Honeywell 635 and IBM 360 / 370 machines, so Mike Lesk wrote the " portable I / O package " which would become the C " standard I / O " routines.

B continued to see use as late as the 1990s on Honeywell mainframes, and on certain embedded systems for a variety of reasons, including limited hardware in the small systems ; extensive libraries, tools, licensing cost issues ; and simply being good enough for the job on others.

Burroughs was one of the eight major United States computer companies ( with IBM, the largest, Honeywell, NCR Corporation, Control Data Corporation, General Electric, RCA and UNIVAC ) through most of the 1960s.

" The IBM COMTRAN language invented by Bob Bemer was also drawn upon, but the FACT language specification from Honeywell was not distributed to committee members until late in the process and had relatively little impact.

The six computer manufacturers were Burroughs Corporation, IBM, Minneapolis-Honeywell ( Honeywell Labs ), RCA, Sperry Rand, and Sylvania Electric Products.

Implementations also exist for the Interdata 8 / 32, PDP-11, VAX, Alpha platforms and HP Integrity servers ; for the Honeywell, and for the Computer Technology Limited ( CTL, later ITL ) Modular-1 ; as well as for SPARC running Solaris and Intel running Linux.

However, the PDP-6 proved to be a " hard sell " with customers, as it offered few advantages over similar machines from the better established vendors like IBM or Honeywell, in spite of its low cost around $ 300, 000.

Honeywell wrote MRDS for Multics, and now there are two new implementations: Alphora Dataphor and Rel.

Vendors of high-performance scientific computers ( e. g., Burroughs, CDC, Cray, Honeywell, IBM, Texas Instruments, and UNIVAC ) added extensions to Fortran to take advantage of special hardware features such as instruction cache, CPU pipelines, and vector arrays.

Honeywell documentation on hall effect sensing, interfacing and applications.

Shrinking demand and tough competition started a shakeout in the market in the early 1970s — RCA sold out to UNIVAC and GE also left ; in the 1980s Honeywell was bought out by Bull ; UNIVAC became a division of Sperry, which later merged with Burroughs to form Unisys Corporation in 1986.

RCA was one of several major computer companies ( see also: Computing ) that also included IBM, Digital Equipment Corporation, Burroughs, Control Data Corporation, General Electric, Honeywell, NCR and Sperry Rand through most of the 1960s.

He was gradually drawn into the legal disputes being contested by the fast growing computer companies Honeywell and Sperry Rand.

Also sold — to Honeywell — was Sperry Flight Systems, while Sperry Defense Products Group was sold to Martin Marietta ; those two units whose functions were originally at the heart of the venerable Sperry Gyroscope division.

" The description of IBM's competitors changed after GE's 1970 sale of its computer business to Honeywell and RCA's 1971 sale of its computer business to Sperry, leaving only five " dwarfs ".

* Honeywell vs. Sperry Rand Records ( CBI 1 )

The concept of a seven-layer model was provided by the work of Charles Bachman, Honeywell Information Services.

* the network data structures technique, popularly called the CODASYL approach, of Dr Charles Bachman ( Honeywell Information Systems );

Notable subcontractors and technical experts include Boeing, Alliant Techsystems ( ATK ), Honeywell, Naval Surface Warfare Center, SPAWAR Systems Center, Johns Hopkins University Applied Physics Laboratory ( JHU / APL ), and the Massachusetts Institute of Technology Lincoln Laboratory ( Lincoln Lab ).

He has acted as a consultant to industry and government, including the Atomic Energy Control Board of Canada, Australian Defence Science and Technology Organisation, Honeywell Technology Center, Microsoft, NASA Ames Research Center, NATO, Nortel Networks, US Institute of Medicine, US National Academy of Engineering, and US Nuclear Regulatory Commission.

After graduation, Allen attended Washington State University, where he was a member of Phi Kappa Theta Fraternity but dropped out after two years in order to work as a programmer for Honeywell in Boston, placing him near his old friend again.

University of Waterloo for Honeywell systems by Peter Fraser.

The first version was written in B by Alan Cox, Richard Acott, Jim Finnis, and Leon Thrane based at University of Wales, Aberystwyth for an old Honeywell mainframe and opened in 1987.

Bayfront, once site of a Honeywell plant is a site on the Hackensack River, and is nearby the planned West Campus of New Jersey City University.

It was written at the University of Waterloo by Peter Fraser for the Honeywell GCOS operating system.

In December 1974 Bill Gates was a student at Harvard University and Paul Allen worked for Honeywell in Boston when they saw the Altair 8800 computer in the January 1975 issue of Popular Electronics.

It opened on July 1, 2002, and is a station on the, serving the Richardson Civic Center, the University of Texas at Dallas and part of Richardson's Telecom Corridor including the facilities for Honeywell and Samsung.

He was signed by the Montreal Canadiens soon after he came out of the University of Denver in 1961 and would play a few years in the minors before retiring in 1963 in order to work for the Honeywell Corporation in Minneapolis, MN.