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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]
ENIAC Short Code [1] 1948 Plankalkül (year of concept publication) Konrad Zuse: none (unique language) 1949 EDSAC Initial Orders: David Wheeler: ENIAC coding system 1949 Short Code (originally known as Brief Code) John Mauchly and William F. Schmitt ENIAC Short Code Year Name Chief developer, company Predecessor(s)
Leonard Adleman – co-created RSA algorithm (being the A in that name), coined the term computer virus Alfred Aho – co-created AWK (being the A in that name), and main author of famous Compilers: Principles, Techniques, and Tools (Dragon book)
Just four years old at the time, the "Beginners' All-purpose Symbolic Instruction Code" was made to help students in nontechnical fields get started with computer programming.
Bjarne Stroustrup (/ ˈ b j ɑːr n ə ˈ s t r ɒ v s t r ʊ p /; Danish: [ˈbjɑːnə ˈstʁʌwˀstʁɔp]; [3] [4] born 30 December 1950) is a Danish computer scientist, known for the development of the C++ programming language. [5]
With James Cooley, created the fast Fourier transform. He invented the term "bit". [57] 1936 Turing, Alan: Made several fundamental contributions to theoretical computer science, including the Turing machine computational model, the conceiving of the stored program concept and the designing of the high-speed ACE design.
It has found lasting use in operating systems code (especially in kernels [7]), device drivers, and protocol stacks, but its use in application software has been decreasing. [8] C is commonly used on computer architectures that range from the largest supercomputers to the smallest microcontrollers and embedded systems.
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.