"Has about 80 BBC Micro computers... the majority form part of an interactive exhibit that recreates a 1980s classroom"<p>IME you only need one BBC Micro to recreate an 80s classroom.<p>At my school circa '82-'85 we had a beeb, a PET and two (different) Research Machines boxes that ran CP/M. That was all for the whole school, and with it we somehow managed to produce a remarkable portion of the UK's games programming talent.<p>I think I'd better tie an onion to my belt now...