All in all, Unix can support up to 12kg of laundry

Limited oak means less UNIX: they're not expensive, only hard to make.

While researching the SCO cases, I have come across some really cool Unix history and trivia! Unix has a very rich heritage, which goes a way to explaining it's maturity, power, complexity and quirkiness. It also, Dr Warren Toomey is quoted as saying in this SMH article, the reason why SCO has absolutely no idea what it does and does not own. Allegedly SCO did not even have a copy of the Sys III code (which it owns), and also apparently AT&T included a lot of university research code (much from Australia) without attribution (which SCO does therefore not own).

More cool stuff courtesy of The Unix Heritage Society:

Back around 1970-71, Unix on the PDP-11/20 ran on hardware that not only did not support virtual memory, but didn't support any kind of hardware memory mapping or protection, for example against writing over the kernel. This was a pain, because we were using the machine for multiple users. When anyone was working on a program, it was considered a courtesy to yell "A.OUT?" before trying it, to warn others to save whatever they were editing.

You can also view online scans of the original first edition Unix Programmer's Manual "typed" November 3, 1971 on a Model 37 Teletype terminal that was evidently not in perfect tune, which only makes it cooler!

Now I am well known for compiling and running OS's for the joy of it, but I am bemused that people would spend serious time bringing "the features of 4.4BSD to the PDP-11s with 22-bit addressing" in 2.11 BSD. Or maybe I'm just getting boring.

Footnote: the quirky UNIX branded goods featured in this blog entry can be found at this link.