He worked on the architecture of the IBM 7030 Stretch, a $ 10m scientific supercomputer of which nine were sold, and the IBM 7950 Harvest computer for the National Security Agency.

Originally designed to meet a requirement formulated by Edward Teller at Lawrence Livermore, the first example was delivered to Los Alamos National Laboratory in 1961, and a second customized version, the IBM 7950 Harvest, to the National Security Agency in 1962.

# U. S. National Security Agency in February 1962 as the main CPU of the IBM 7950 Harvest system, used until 1976, when the IBM 7955 Tractor tape system developed problems due to worn cams that could not be replaced.

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* Harvest ( computer ), nickname for the IBM 7950, a one-of-a-kind adjunct to the Stretch computer

It was also a less expensive alternative to the Apple Macintosh and IBM PC as a general-purpose business or home computer.

In developing AIX, IBM and Interactive Systems Corporation ( whom IBM contracted ) also incorporated source code from 4. 2 and 4. 3 BSD UNIX.

Among other variants, IBM later produced AIX Version 3 ( also known as AIX / 6000 ), based on System V Release 3, for their IBM POWER-based RS / 6000 platform.

AIX PS / 2 ( also known as AIX / 386 ) was developed by Locus Computing Corporation under contract to IBM.

In 1988, IBM announced AIX / 370, also developed by Locus Computing.

Versions were also released for the IBM PC and compatibles, and the Apple IIGS.

ACM also sponsors other computer science related events such as the worldwide ACM International Collegiate Programming Contest ( ICPC ), and has sponsored some other events such as the chess match between Garry Kasparov and the IBM Deep Blue computer.

During the early 1960s, while also active in ASCII standardization, IBM simultaneously introduced in its product line of System / 360 the 8-bit Extended Binary Coded Decimal Interchange Code ( EBCDIC ), an expansion of their 6-bit binary-coded decimal ( BCDIC ) representation used in earlier card punches.

In IBM PC compatible computers, the Basic Input / Output System ( BIOS ), also known as the system BIOS or ROM BIOS (), is a de facto standard defining a firmware interface.

" 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 custom-designed and custom-built AGA chipset also cost Commodore considerably more than the commodity chips used in IBM PCs, further reducing Commodore's profit margins.

The first ( retroactively ) RISC-labeled processor ( IBM 801-IBMs Watson Research Center, mid-1970s ) was a tightly pipelined simple machine originally intended to be used as an internal microcode kernel, or engine, in CISC designs, but also became the processor that introduced the RISC idea to a somewhat larger public.

It was considerably faster than an IBM PC and was, like the Compaq Portable, also capable of running IBM software.

This technical leadership and the rivalry with IBM was emphasized when the Systempro server was launched in late 1989-this was a true server product with standard support for a second CPU and RAID, but also the first product to feature the EISA bus, designed in reaction to IBM's MCA ( MicroChannel Architecture ).

HP was also unable to compete effectively with IBM in the high-end server market.

At MIT, Olsen and Anderson noticed something odd: students would line up for hours to get a turn to use the stripped-down TX-0, while largely ignoring a faster IBM machine that was also available.

It was also licensed to IBM by Microsoft, and marketed by them as PC-DOS.

IBM also had their own DBMS system in 1968, known as IMS.

In addition to CSMA / CD, Token Ring ( supported by IBM ) and Token Bus ( selected and henceforward supported by General Motors ) were also considered as candidates for a LAN standard.

IBM Research Labs also developed an extended FORTRAN-based language called " VECTRAN "

The IBM 7094, introduced the same year, also supported single and double precision, with slightly different formats.

This program ran only on IBM VM / SP CMS, but was the inspiration for other programs, including filelist ( a script run via the Xedit editor ), and programs running on other operating systems, including a program also called flist, which ran on OpenVMS, and fulist ( from the name of the corresponding internal IBM program ), which runs on Unix.

* 1944 – IBM dedicates the first program-controlled calculator, the Automatic Sequence Controlled Calculator ( known best as the Harvard Mark I ).

" By 1972 when GE and RCA were no longer in the mainframe business, the remaining five companies behind IBM became known as the BUNCH, an acronym based on their initials.

Well known DBMSs include Oracle, IBM DB2, Microsoft SQL Server, Microsoft Access, PostgreSQL, MySQL, and SQLite.

: The best known family of operating systems named " DOS " is that running on IBM PCs type hardware using Intel x86 CPUs or their compatible cousins from other makers.

Codd's ideas were establishing themselves as both workable and superior to Codasyl, pushing IBM to develop a true production version of System R, known as SQL / DS, and, later, Database 2 ( DB2 ).

In 1994, a member of the original IBM DES team, Don Coppersmith, published a paper stating that differential cryptanalysis was known to IBM as early as 1974, and that defending against differential cryptanalysis had been a design goal.

Within IBM, differential cryptanalysis was known as the " T-attack " or " Tickle attack ".

Although Kildall preferred to leave the IBM affair in the past and to be known for his work before and afterward, he continually faced comparisons between himself and Bill Gates as well as fading memories of his contributions.

From 1952 into the late 1960s, IBM manufactured and marketed several large computer models, known as the IBM 700 / 7000 series.

The IBM Personal Computer, commonly known as the IBM PC, is the original version and progenitor of the IBM PC compatible hardware platform.

The IBM 3270 is a class of block oriented terminals made by IBM originally introduced in 1972 ( known as " display devices ") normally used to communicate with IBM mainframes.

The term is typically used to describe a family of fairly well known tricks that can overload the analog electronics in the CRT monitors of computers lacking hardware sanity checking ( notable examples being the IBM Portable and Commodore PET.

In IBM mainframe environments such as OS / 360 this program is known as a linkage editor.

Pipelining as a basic technique was well known before ( see IBM 801 for instance ), but not developed into its full potential.