It seems that “Google” engineer Bill Buzbee isn’t interested in microprocessors that can be purchased in marked. There is more fun to build own. Several years ago he built first “Magic-1” processors, but now he makes its documentations widely available in his project website.
The whole processor is wired of about 200 of 7400 series TTL chips. As result he built a working processor that can be clocked at 4,09MHz and has 4 MB of RAM. This Homebrew processor works under “Minix 2” OS and can be used as WWW server or for playing games.