Saustrup<p>Here's a weird thing I found, while restoring my old <a href="https://mstdn.dk/tags/CPM" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>CPM</span></a> computers from <a href="https://mstdn.dk/tags/GeminiMicrocomputers" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>GeminiMicrocomputers</span></a>: while there were models available with Winchester drives (that's harddisks for you young folks), the setup was a little weird. This was the time of the <a href="https://mstdn.dk/tags/MFM" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>MFM</span></a> and RLL harddrives, used by other systems such as the IBM 5150. Easily recognizable by having two flat ribbon cables instead of just one for each drive. RLL was a little more tightly packed with capacity, but basically the same concept - required slightly different controllers though. </p><p>Anyway, back to the Gemini. It featured a <a href="https://mstdn.dk/tags/SASI" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SASI</span></a> interface, which is sort of an early version of <a href="https://mstdn.dk/tags/SCSI" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SCSI</span></a>. Did you connect a drive directly to it? Noooo. You connected a <a href="https://mstdn.dk/tags/Xebec" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Xebec</span></a> SCSI/MFM controller. Did that require a lot of weird SCSI commands for telling the Xebec what disk was attached? Of course. Compared to how it's done today, very backwards.</p><p>Which meant I had zero luck with my new <a href="https://mstdn.dk/tags/zuluscsi" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>zuluscsi</span></a> device. <a href="https://zuluscsi.com/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">zuluscsi.com/</span><span class="invisible"></span></a></p><p>I've got a plan B though.</p>