Way back in the late 1970's, when I was a lowly project manager at Data General Mini-Computer Corp, one of the more talented tech writers wrote a "How-To" manual as a joke for our Systems Engineers lucky enough to be helping our customers run our Commercial Advanced Operating System (pronounced CHAOS).
Here is a photo of the title page of my copy. Zoom in and read the finer print, too, and you MicroCode and Software Weinies will get a kick out of the part number (fine print, center of page). It was actually a very accurate and complete manual, but the reader couldn't stop laughing as they went from page to page.
Who says Computer geeks don't have any fun?
![CHAOS Manual CHAOS Manual](https://www.speedsterowners.com/fileSendAction/fcType/0/fcOid/716846328859386277/filePointer/716705591501862115/fodoid/716705591501862111/imageType/MEDIUM/inlineImage/true/CHAOS%2520Manual.jpg)
This is the same company that had a really good Employee Rock Band that did parodies of just about anything Data General-ish, but mostly made fun of the Sales force. They called themselves "The Talking Propeller-Heads" and have a few videos up on Youtube.
https://www.youtube.com/result...r+heads+data+general
Here's one of their videos. "Ed" was our CEO, Ed DeCastro and "Herb" was Herb Richman, the VP of Sales, and they were our company founders.