system with a talker
written at UCL
circa 1987 by Whalemeat and Roadrunner.
Bullet was one of the main centrepoints of the JANet online community before the Internet reached the UK.
The original system ran under OS4000 on Euclid - the central server at UCL, but was later ported to unix. Several other Bullet-based boards sprung up, the most notable of which was probably Olajier, a publicly-accessible Bullet which ran at the Imperial College Electrical Engineering department.
One publically-accessible Bullet system still exists. Telnet or ssh to euclid.earth.ox.ac.uk and login as guest with no password.