CNNcom IBM PC turns 25;Powerpc microsoft vista ia32 &Published 0601 The Brain computer virus started spreading among IBM PC systems years ago this month, but the selfpropagating program was not the first computer virus The honors go to a UNIVAC program that acted as a carrier for a variant of the Animal game The virus, though it was not called such, was dubbed PERVADE by its author

Apple Power Mac G5 03 06 Stock Editorial Photo C Steve Allen