Today (October 12, 2011) is the Memorial Day of Dennis MacAlistair Ritchie, the creator of the C programming language.
Dennis MacAlistair Ritchie was born on September 9, 1941 in Bronxville, New York. His father, Alistair E. Ritchie, a longtime Bell Labs scientist and co-author of The Design of Switching Circuits on Switch Circuit Theory. As a child, Dennis moved with his family to the summit in New Jersey. There he graduated from Summit High School. He graduated from Harvard University with a degree in physics and applied mathematics. After graduating, he decided with the usual humility that he was not smart enough to be a physicist. In 1967, Ritchie began working at the Bell Lapse Computing Science Research Center. Also in 1968, Patrick c. Under Fischer's supervision he produced his PhD dissertation at Harvard on the "program structure and computational complexity".
However, Ritchie never officially received his PhD. This is because he did not submit a copy of his dissertation to the Harvard Library, which is required for the degree. In 2020, the Computer History Museum worked with Ritchie's family and Fischer's family to find a copy of the lost research paper. In the 1960s, Richie and Ken Thompson worked at Bell Labs on the Multix operating system. Thompson later invented an old PDP-7 engine and, with the help of Ritchie and others, developed his own application programs and operating system. In 1970, Brian Kernigan suggested the name "Unix". This is a bun called "Multix". He combined assembly language with a computer-level programming language.
In the 1970s, Ritchie collaborated with James Reeds and Robert Morris in a cybertext-only attack on the M-209 U.S. cyber machine. It can resolve messages of at least 2000-2500 letters. As Ritchie noted, after discussions with the NSA, the authors decided not to publish it. Because it was said that this policy would apply to machines still in use by foreign governments. Ritchie was also involved in the development of Plan 9 and Inferno operating systems and the programming language Limbo. As part of the AT&T restructuring in the mid-1990s, Richie Lucent transferred to Technologies. There he retired in 2007 as head of computer software research.
Ritchie C developed and developed the programming language. Influenced other programming languages, he co-created the UNIX operating system with Bell Lab Engineers such as Ken Thompson, Brian Kearnigan, Douglas McIlroy, and Joe Osana. Due to this he gained great fame. He was awarded the Touring Award by the Computer Group (ACM) in 1983, the Hamming Medal by the IEEE in 1990, and the United States High National Award for Technology in 1998. Ritchie Bell retired in 2007 as head of the Lucent Technological Laboratory at the Labs.
Dennis McCallister Ritchie, the creator of the C (programming)
programming language, passed away on October 12, 2011, at his home in Berkeley
Heights, New Jersey, in his 70s. The first news of his death came from his
former colleague Rob Bike. The cause of death and the exact time have not been
released. He was in poor health for many years following treatment for prostate
cancer and heart disease.
Source By: Wikipedia
Information: Ramesh, Assistant Professor of Physics, Nehru Memorial
College, Puthanampatti, Trichy.
interesting sir
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