Dennis MacAlistair Ritchie (September 9, 1941) is a computer science notable for his influence on ALTRAN, B programming language, BCPL, C programming language, Multics, and Unix.

Born in Bronxville, New York, New York, Ritchie graduated from Harvard with academic degrees in Physics and applied mathematics. In 1967, he began working at the Bell Labs; he is currently the head of Lucent Technologies. In 1983, he and Ken Thompson jointly received the Turing award for their development of generic operating systems theory and specifically for the implementation of the UNIX operating system.

=C and Unix=

When asked what influenced him in developing C in the manner he did, Ritchie has been quotation to have said that it looked like a good thing to do , and that anyone else in the same place at the same time would have done the same thing. Many, however, have said that this is part of Ritchie s modest personality. One of his Bell Labs colleagues, Bjarne Stroustrup, who developed and designed the C plus plus programming language, an object oriented version of C, has been quoted to have said that If Dennis had decided to spend that decade on esoteric math, Unix would have been stillborn . Indeed, being the inventor of the C programming language, as well as co-inventor of the Unix operating system alongside Ken Thompson, Ritchie has earned an important position in the history of the computer industry. C is still widely used today in application and operating system development and its influence can be seen in many more recent programming languages such as C plus plus, C Sharp, Objective-C, Java programming language, and JavaScript. In the operating system world, Unix is also quite influential; there are many dialects of it available on the market today, such as AIX operating system, Solaris Operating Environment, Mac OS X, Berkeley Software Distribution, and similar systems like Minix, as well as the popular Linux operating system which is considered to be the crowning achievement of the open source and free software movements. Indeed, even Microsoft, whose Microsoft Windows operating systems compete with Unix, has developed Unix compatibility tools and C compilers for users and developers of their products.

Dennis has also contributed to the two official successors of Unix and C: the Plan 9 (operating system) operating system and the Limbo programming language, both of which build upon his previous work.

=Nicknames=

Dennis Ritchie is often referred to as DMR in various Usenet newsgroups (such as comp.lang.c); he is the R of the The C Programming Language (book).

=Writings by Ritchie=

=Quotes=

I am not now, nor have I ever been, a member of the demigodic party.

=External links=