F/OSS Comics #13: BSD Unix, Part 3 – The Beginning of BSD Unix
Dive into the nascent days of BSD Unix with the third installment of this historical series. It recounts the creation of 2BSD, featuring iconic tools like vi and the C shell, and highlights the pivotal arrival of the VAX. This deep dive into operating system history appeals to HN's appreciation for foundational technical narratives.
The Lowdown
This article, the third in a series on BSD Unix, delves into the foundational moments of its inception. It details the critical early developments at UC Berkeley that transformed a collection of utilities into a significant operating system.
- 2BSD Release: Following initial user feedback, Bill Joy bundled improvements to the Pascal system with the newly developed
vieditor, the C shell, and other essential tools, creating the Second Berkeley Software Distribution (2BSD). - Personalized Distribution: Joy personally managed all distribution requests, meticulously copying 2BSD onto tapes and mailing out nearly seventy-five copies himself.
- Arrival of the VAX: In 1978, a VAX machine arrived at Berkeley, presenting new challenges and opportunities for system development.
- Virtual Memory Imperative: The VAX's existing 32/V operating system did not leverage its virtual memory capabilities, posing a limitation for demanding applications like Professor Richard Fateman's Macsyma, a symbolic expression computer algebra system. This bottleneck spurred the need for virtual memory implementation to expand program address space beyond physical memory.
- Holiday Debugging: The pressing need to address these issues led to debugging efforts continuing through the 1978 holiday season.
These early, hands-on efforts by individuals like Bill Joy and the technical challenges posed by emerging hardware set the stage for BSD Unix's future, demonstrating the practical problem-solving that drove its evolution.