Microsoft has got no more than it deserves. Its arrogance in refusing to admit any of the serious charges against it has goaded Judge Thomas Penfield Jackson, a conservative Reaganite appointment, into inflicting a more severe penalty than would have happened had the software company shown any serious sign of regret or even of willingness to meet half way. Now, unless an appeal court or the supreme court overturns the judgment, Microsoft will be split into two separate companies.