11.  But the trouble is, humans make computers.

12.  Chalk it up largely to the high-tech revolution, which could make the computer as much of a household commodity as gasoline.

13.  Companies that make the computers that use semiconductors also fell.

14.  Computers are made for speed.

15.  Dell made computers for businesses, declared its founder and chairman, Michael Dell.

16.  Digital Equipment, based in Maynard, Massachusetts, makes powerful computers that store and retrieve critical data in networks.

17.  Does it make computers?

18.  Digital, based in Maynard, Massachusetts, makes computers and provides computer services.

19.  Dinges says there are two challenges to making a computer that can conduct humanlike talk therapy.

20.  Eventually, the limit is reached, forcing the date to wrap around to zero, which, in effect, makes computer programs suddenly jump backward in time.