多项选择题
Whichof the following statement is right according to this article?(More than one answer)()
A、The PC era followed pretty much the same pattern.
B、This is not a proven formula for all manner of grand adventures andmisadventures.
C、The history of the computer business is that its market leaders areboth fabulously rich and highly ambitious.
D、Perhapsone of the reasons IBM was tempted to look upwards was because, whileit had vast amounts of cash, it faced serious legal constraints inmany of its core markets.