Big Blue and the 40 Dwarves IBM, known as Big Blue, is the largest computer company in the world - ten times the size of its nearest rival. Its first personal computer was so successful that it set a technical standard.  Forty other manufacturers now use IBM standards in designing their machines. Ian McNaught-Davis finds out if, now they are embracing Big Blue's standards, the 40 dwarves can get out of its clutches.