Dennis MacAlistair Ritchie (September 9, 1941 – October 12, 2011), Graduate of Physics and Applied Mathematics at Harvard, was an American computer scientist.1Dennis Ritchie said that he wasn't smart enough to be a physicist or mathematician (he was), but he liked programming. That is why in 1967 he abandoned his postgraduate degree in Applied Mathematics at Harvard to enter the legendary Bell Laboratories. Shortly after entering Bell Labs in the 1960s, at a time when computers did not yet have an interoperable operating system (the architecture could not be transferred between several computers, nor the same programs passed), he was assigned to work together with Ken Thompson in the development of the MULTICS Operating System, but this OS. They found it too complicated, and very heavy. UNIX, a multipurpose and interoperable operating system, meant a paradigm shift and a technological revolution that made software development more efficient. To keep up with the new UNIX system that had been written in assembly code, between 1969 and 1973 Ken Thompson created the B language, but it needed many improvements. B was later replaced by the super-powered C, who was created by Ritchie. C gave UNIX more flexibility and allowed it to be installed on multiple platforms. C will not be the first programming language, but practically all of today's languages descend from it: Java, C++, Microsoft's C#, Objective C, Swift, Python, Ruby, PHP, etc. He died at the age of 70 on the night of Wednesday, October 12, 2011 in the company of his family. His friend Robert Pike was the first to break the news through the Google+ social network.
