Tuesday, 18 November 2025

TCPL Still Rules the Linux Roost

The programming language C (born in the 1970s, created by Dennis Ritchie, who also created its predecessor, B) still rules the roost as far as the Linux kernel is concerned, whereby of 37 million lines of code, we have just over 35m LOCs written in C as per analysis from OpenHub.

Linux is the open source version of Unix, which was written in C, and prior to that in assembler. The introduction of the programming language C made the code portable to different hardwares.

Ken Thompson and Dennis Ritchie and their colleagues at Bell Labs (AT&T) were the co-creators of the Unix Operating System, created in 1969.   Douglas McIlroy introduced the Unix philosophy of small, composable tools. Brian Kernighan helped to popularise UNIX and C through co-authoring The C Programming Language with Dennis Ritchie.

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