DECtape

[Dave Martindale]

You could actually boot from DECtape.  The real challenge was getting a
minimal root filesytem (bootloader, some inodes, unix, /etc/init, /bin/sh,
and some of /dev) onto a DECtape.  If I remember correctly, they only
stored about 256Kb.

Speaking of strange DEC hardware, anyone remember the RF11 disk?  A fixed-
head drive that was formatted so you could rewrite individual 16-bit
words, and whose transfer rate was *slower* than the not-exactly-fast
RK05 disk.  It made a good /tmp though (zero seek time).