Didn't you RTFA? They were built by Cisco.
RTFA?... but isn't this slashdot?
... all of them? Seriously the inclusion of a trained Shakespearian actor (Stewart) was the only saving grace of that branch-off of TOS.
come on... it's not like the series didn't have any redeeming qualities at all... is it?
"Marriage is low down, but you spend the rest of your life paying for it." -- Baskins