Here was an actual functioning operating system, and it worked.

196

[It was this version of Unix that Ritchie and Thompson presented to about 200 people at the Symposium on Operating System Principles in 1973.] This was one of the first 'wow' papers, ... Almost immediately, people started calling up asking if they could get copies of this new operating system.

177

This was one of the first 'wow' papers. Almost immediately, people started calling up asking if they could get copies of this new operating system.

110

There was a lot of unhappiness at the Labs. So Ken and Dennis, with Doug's prodding, decided they'd try to write a system that would make them happy.

108

Neither Dennis nor Ken ever dreamed it would still be in use 30 years later.

96