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Dennis MacAlistair Ritchie (September 9, 1941 – c. October 12, 2011) was an American computer scientist. [3] He created the C programming language and the Unix operating system and B language with long-time colleague Ken Thompson. [3]
Alan Turing is credited with being the first person to come up with a theory for software in 1935, which led to the two academic fields of computer science and software engineering. The first generation of software for early stored-program digital computers in the late 1940s had its instructions written directly in binary code, generally ...
C 1986 Erlang: Joe Armstrong and others in Ericsson: PLEX, Prolog 1987 Ada ISO 8652:1987: ANSI/MIL-STD-1815A unchanged Ada 83 1987 Self (concept) Sun Microsystems Inc. Smalltalk 1987 occam 2: David May and INMOS: occam: 1987 HyperTalk: Apple Computer: none (unique language) 1987 Clean: Software Technology Research Group of Radboud University ...
The first high-level language to have an associated compiler was created by Corrado Böhm in 1951, for his PhD thesis. [3] The first commercially available language was FORTRAN (FORmula TRANslation), developed in 1956 (first manual appeared in 1956, but first developed in 1954) by a team led by John Backus at IBM .
He is credited with one of the first software hash tables, and influencing early research in using transistors for computers at IBM. [3] At IBM he made the first checkers program on IBM's first commercial computer, the IBM 701. The program was a sensational demonstration of the advances in both hardware and skilled programming and caused IBM's ...
A standards-compliant C program written with portability in mind can be compiled for a wide variety of computer platforms and operating systems with few changes to its source code. Since 2000, C has consistently ranked among the top four languages in the TIOBE index, a measure of the popularity of programming languages. [13]
Together with J. C. Shaw [43] and Herbert Simon, the three co-wrote the Logic Theorist, the first true AI program, in the first list-processing language, which influenced LISP. 1943 Newman, Max: Instigated the production of the Colossus computers at Bletchley Park.
The C Programming Language (sometimes termed K&R, after its authors' initials) is a computer programming book written by Brian Kernighan and Dennis Ritchie, the latter of whom originally designed and implemented the C programming language, as well as co-designed the Unix operating system with which development of the language was closely intertwined.