Cray was natural around 1925 in Chippewa Falls, Wisconsin. He graduated from either senior high school within 1943 before being drafted into World War II and seeing action in two Europe and the Pacific theatre. In his link to to the United States he took a B.Sc inside Electrical Engineering at the University of Minnesota, graduating in 1950. He besides gained the M.Sc around applied mathematics in 1951.

Within 1950, Cray joined Engineering Research Associates in Saint Paul, Minnesota. Cray quickly come to exist as think of an practiced in digital computer technology, especially below his project act on the ERA 1103, the foremost commercially successful scientific computer. He remained at ERA when it was bought by Remington Rand and then Sperry Corporation in the early 1950s. At a newly-formed Sperry-Rand, ERA became the "scientific computing" arm of their UNIVAC division.

Control Data

However whenever a scientific computing section was phased call at 1957, a total of employees left to form Control Data Corporation (CDC). Cray wanted to watch immediately, however William Norris refused as Cray was in the middle of completing the task for the US Navy, with whom Norris was interested within maintaining a good relationship. A task, a Naval Tactical Data System, was completed early the next month & Cray left for CDC too. By 1960 he had completed a project of the CDC 1604, an improved low-affordable ERA 1103 that had telling performance for its price range.

Just as a CDC 1604 was starting to ship in 1960, he got already moved in to designing its "replacement", a CDC 6600. Although inside terms of devices a 6600 was non on the leading edge, Cray invested considerable effort into the project of the machinein an effort to enable it to rerun when convenient when conceivable. Unlike virtually all high-prevent projects, Cray realized that there was well further to performance than elementary processor speed, that I/O bandwidth had to exist as maximixed too sequentially to keep away from "starving" a processor of information to crunch. When he late noted, Anyone could build the convenient CPU. the trick is to build a convenient body..

A 6600 was a 1st commercial supercomputer, outperforming all about so available by the wide margin. Spell expensive, for victims that required a absolutely fastest computer available, there was just nothing else on the market. Once more corporations (videlicet IBM) attempted to create machines using similar performance, he just upped a bar by releasing a Fivesome-days sooner CDC 7600.

In the time period of this period Cray got get more and more annoyed at what he saw when corporate interference from either CDC management. Cray universally demanded an absolutely quietly operate enviornment by having a minimum of management overhead, however when the company grew he obtained himself constantly interrupted by middle-managers world health organization (based on data from Cray) did little however gawk & apply him as a sales thing by introducing him to prospective client. Cray decided that sequentially to prove my point development he would keep close at hand to move from either St. Paul, far plenty that it would exist as as well hanker the cause for the "quick visit" & trunk call telephone charges would exist as good plenty to deter virtually all calls, however close sufficiency that really visits of committee meeting can be attended while forgoing overmuch difficultly. Fallowing the bit of debate, Norris backed him & install a fresh laboratory onto land Cray owned inside his residence town of Chippewa Lessens. A bit of of the understanding for the move might besides stand to clean by having Cray's worries astir an imminent nuclear war, which he felt made Minneapolis the good safety concern. His home, built two or three c yards from either the newly CDC lab, including a brobdingnagian bomb shelter.

A freshly Chippewa Lab was install midmost of a 7600 design, although it doesn't seem to keep close at hand delayed the design. Fallowing a 7600 shipped, he began development of its replacement, a CDC 8600. It was this plan that eventually ended his redo of successes at CDC inside 1972.

Although a 6600 & 7600 got been immense successes in a prevent, each projects experienced nearly bankrupted the company when it were existence designed. A 8600 was running off into similar difficulties & Cray sooner or later decided that a merely guide was to begin complete freshly. This period Norris wasn't uncoerced to choose a chance, & an additional design in a company, a CDC STAR-100 seemed to be making progress. Norris said he was uncoerced to keep a design alive at a great level until a STAR was delivered, however Cray was unwilling to function under these conditions & left the company.

Cray Research

A split was fairly amicable, & whenever he began Cray Research around a freshly science laboratory on the equivalent Chippewa property a year later on, Norris invested $300,000 in run-higher money. Around the reversal of CDC's operations, R&D and manufacturing were based in Chippewa Falls while the business headquarters were in Minneapolis.

Ab initio there wwhen a select few wonder as to what exactly a newly company should clean. It didn't seem that there would become how else for the two to afford to have the recently computer, given that CDC experienced been unable. However whilst a President around charge of funding travelled to Wall Street to look for seed capital, he was surprised to find that Cray's reputation was super easily known. Far from either struggling for the market, the fiscal globe was further than unforced to provide Cray sustaining all the money it would require to produce a recently machine.

When many years of development their 1st product was freed around 1976 as the Cray-1, easily beating nearly a ILLIAC IV in performance. Serial total 001 was "lent" to Los Alamos in 1976, and that summertime a number one to the full models was sold to NCAR for $8.8 million. A company's early estimates experienced suggested that it may sell a xii such machines, according to sales of similar machines from either the CDC era, however in the prevent overflow Hundred Cray-One's were sold, & the company was a brobdingnagian profits.

From either there profits was non and then real life. When he worked on the Cray-2, other teams delivered a 4-processor Cray X-MP, which was a immense profits. Whenever a Cray-Two was eventually freed when sixer years of development it was simply marginally sooner than a X-MP, largely due to around no time memory, & so sold in great deal little counts. When a Cray-3 project started he observed himself inside familiar territory, & sequentially to concentrate within project, Cray left a CEO position of Cray Search in 1980 to become an independent contractor, working from either the recently Science laboratory inside Colorado Springs, Colorado, near a places of NCAR & the sooner attempted Cray Laboratories.

Around 1989 Cray was faced with a repetition of retiring history whenever the Cray-Three began to start into difficulties. An update of a X-MP utilizing high-high-velocity memory from either the Cray-deuce was under development & seemed to become making very progress, & again management was faced sustaining two projects & limited budgets. It finally decided to choose a safer route, releasing a newly project when a Cray Y-MP.

Cray Computer

Cray decided to spin off a Colorado Springs science laboratory to form Cray Computer Corporation, ingesting a Cray-Three plan using the babies.

A D MHz Cray-Three was to prove Cray's 2nd major failure. Sequentially to provide a X-days increase around performance that he universally demanded of his freshly machines, Cray decided that a machine would own to become built utilizing gallium arsenide semiconductors. It used to be that Cray got universally avoided utilizing anything possibly touching a state of the art, preferring to use easily-known solutions & designing the convenient machine according to the children. However in that outbreak Cray was getting each a share of a machine, potentially the chips in. it.

Even so a team was take a breath for a machine working & installed their foremost case at NCAR. a machine was however in essence a image, & a company was using the installation to debug the project. By this instance the total of massively parallel machines were coming into a market at price/performance points a Cray-Three may not touch. Cray responded across "brute force", starting project of the Cray-4 which would run at 1GHz & outpower these machines, disregarding of price.

Inside 1995 there had been there is no farther sales of a Cray-Three, & the ending of the cold war made it unlikely anyone would choose plenty Cray-Four's to offer the go to on the development funds. A company ran away from money & experienced to file for bankruptcy.

SRC Computers

Cray experienced universally resisted the massively parallel guide to high-high-velocity computing, offering a kind of reasons that it would never function besides when of these in no time machine. He famously quipped If you were plowing the field, which would you like utilize: 2 hard kine or even 1024 chickens?. Per mid-90s this line was becoming progressively hard to justify, & modern compiler technology made getting computer software in such machines does'nt lot thomas more hard than their simpler counterparts.

Cray install the freshly company, SRC Computers, Inc., and started the design of his own massively parallel machine. A newly project concentrated in communications & memory performance, a bottleneck that hampered numbers of parallel designs. Project experienced upright began while Cray died of injuries suffered within an car accident in October 5, 1996 aged 71. Ironically the vehicle he was camping, a Jeep Cherokee, had been designed utilizing the Cray supercomputer.[http://ei.cs.vt.edu/~history/Cray.Pepper.html]

Inside 1996 Cray Research was bought by Silicon Graphics, and at length a section was merged by owning Tera Computer Company to form Cray Inc.

Beyond the project of computers Cray led a "streamlined life". He avoided publicity & there are the total of unusual tales all about his life out of act. He enjoyed skiing, wind surfriding, lawn tennis & more sports.

When in 1986 Apple bought a Cray X-MP & announced that it would let it run to project the next Apple Macintosh, Seymour Cray replied, "This is very interesting because I am using an Apple Macintosh to design the Cray-2 supercomputer."