Dennis Ritchie

Birth of Dennis Ritchie

1941

Born Sept 9 in New York to becoming one of the most famous figures in the history of computing

Ritchie Early Education

1963

Dennis attended Harvard in 1963 then received a PHD in Mathematics at Harvard

First Job at Bell Telephone Laboratories

1967

Dennis work developed groundbreaking technologies

Creation of Unix

1969

Ritchie along with Ken Thompson developed Unix and became the foundation for many operating systems

Development of B Programming Language

1970

Ritchie used programming to develop the early Unix systems

Development of C Programming

1972

Ritchie and Brian Kernighen developed C which is the most used programming language in the world

Publication of C Programming language

1973

Ritchie co wrote a book which is now the standard reference for C programming

First Unix System on PDP-11

1974

Ritchie managed to port Unix onto the PDP-11 one of the early computers that Unix ran on

Rise of the Unix operating system

1975

UNix grew in the academic and research communities expanding its influence

First C Compiler

1978

The first C compiler was developed allowing many to write code programs on many platforms

Unix began to gain traction

1980

unix and the c language began to see widespread adoption in academic and commercial settings

Introduction of the Unix system V

1983

ATT released UNIX system V a commercial version of unix based on research work at Bell Labs

C becomes the standard language

1989

The American National Standards Institute standardized C making it the dominant programming language

Further Evolution of Unix

1990

UNix became the foundation for modern operating system including Linux and macOS and the influence expanded to businesses

Death of Dennis Ritchie

2011

The death of Dennis was October 12, 2011 leaving behind a legacy that shaped modern computing