What Thompson had on the PDP-7 was a system, but not really an operating system. So during the summer of 1969, Thompson began implementing the paper file system, which Ritchie liked to refer to as the “chalk file system,” since it emerged from countless discussions at chalkboards in the Computing Science Research Center.

What Thompson had on the PDP-7 was a system, but not really an operating system. So during the summer of 1969, Thompson began implementing the paper file system, which Ritchie liked to refer to as the “chalk file system,” since it emerged from countless discussions at chalkboards in the Computing Science Research Center.

The Creation of the UNIX* Operating System: The UNIX system begins to take shape

Written on October 2, 2012