First, if you want to know more about the company behind the IMSAI, there's a long section in chapter 3 of Fire In The Valley [1] about IMSAIs founding through

First, if you want to know more about the company behind the IMSAI, there's a long section in chapter 3 of Fire In The Valley [1] about IMSAIs founding through to its demise. It's an interesting lesson about what happens when salespeople run tech companies: > Meanwhile, IMSAI had grown quickly and showed no signs of decelerating. The company already occupied two buildings on Wicks Boulevard in San Leandro; administration, sales, marketing, and engineering were located in one building, and production and support in the other. Millard had assembled a driven organization, a fact nowhere more apparent than among the sales team in Building One. Telephone salespeople like Bill Lohse came in promptly at 8 A.M. and, after a brief meeting, got on the phones and stayed there, logging every call until lunchtime. Lohse would take an hour off, during which time he compared notes with other sales representatives on how many thousands of dollars of equipment they had sold that morning. Then he’d jump back on the phones again, making calls until the end-of-the-day sales meeting. ... > Building Two was where reality came in. Selling a million dollars’ worth of computers and building a million dollars’ worth of computers are two different things, and the production people had trouble keeping up with the orders. ... Second, I highly recommend this playlist on YouTube from a guy who restored his IMSAI to working condition. I learned a ton about the basics of an Altair class machine - how it worked, what common boards were used, and how it connected to things like printers and displays, etc. [2] 1 https://www.amazon.com/Fire-Valley-Birth-Personal-Computer-ebook/dp/B00QHFAEDK/ https://www.amazon.com/Fire-Valley-Birth-Personal-Computer-e... 2. https://youtube.com/playlist?list=PLXDK0MeyK4ZjnpbqshdqWuBJL8THk8eep https://youtube.com/playlist?list=PLXDK0MeyK4ZjnpbqshdqWuBJL...