Dennis Ritchie Inventor of UNIX and C-Programing Language

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Dennis Ritchie Inventor of UNIX and C-Programing Language

Dennis MacAlistair Ritchie was an American Computer Scientist, inventor of the Unix Operating System with Ken Thompson and others, Inventor of b-Programing Language with Ken Thompson. Dennis Ritchie was famous for his invention C-Programing Language.

On September 9, 1941, in Bronxville, New York Dennis MacAlistair Ritchie was born. Dennis’s father Alistair E. Ritchie was a scientist and co-author at Bell Labs who worked on The Design of Switching Circuits on Switching Circuit Theory. Dennis Ritchie graduated from Summit High School in New Jersey. Ritchie received a degree in Physics and applied mathematics from Harvard University.

In 1967 Ritchie started working on Bell Labs Computer Science Research Center, in 1968 he conducted a case study on his Ph.D. thesis “Program Structure and Computational Complexity” at Harvard University, but he never received his Official Ph.D. Degree. 

Related Topic: Kenneth Thompson Designer and Implementer of Unix Operating System

In Bell Labs Dennis Ritchie and Ken Thompson worked on an operating system called Multics, later bell labs stopped that project. Ken Thompson then worked on the old PDP-7 machine and developed his own applications and operating system from scratch with the help of Dennis Ritchie, Rob Pike, and Tim Paterson. And this operating system was named as UNIX. On 3 November 1971, UNIX Operating System was officially released at Bell Labs. In the process of enhancing the system level programing language, Ken Thompson invented the b-programing language and later it was replaced by the C-Programing language which was created by Dennis.

Dennis has also involved in many other developments Plan 9m Inferno Operating System and Limbo Programing language. In the part of restructuring AT&T, Dennis Ritchie was transferred to Lucent Technologies and retired in 2007 as ahead of the Systems Software Research Department. 

Nowadays C-Programing language is being widely used to develop the embedded system development and even the Unix Operating system was also adopted in a wide range. 

In an interview, Dennis said that he saw Linux and BSD Operating Systems as a continuous version of the UNIX Operating System

In 1983 Dennis and Ken Thompson received Turning Award from ACM, In 1990 IEEE Hamming Medal, In 1999 National Medal from the Bill Clinton President of the United States of America.

On October 12, 2011, Dennis Ritchie was found dead at his home in Berkeley Heights, New Jersey. The first death news of Dennis came from his former colleague Rob Pike.

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