IBM hunii usnees 200 dahin baga neg tiim optical switch buteeh gej baigaa um bna, delgerengui end bas end bgaa
harin ene anhnii hediinh ni zurag 
Baby, Manchester, UK, June 1948 (Here in its later form as the Mark 1)
BINAC, Philadelphia, USA, August 1949
EDSAC, Cambridge, UK, May 1949
