11.   But, like most shows of the current age, this one is less about competing new technologies than the years-old race between Boeing and Airbus.

12.   Cellular One and GTE have picked two of three competing digital technologies on the market and Pac Bell has picked the third.

13.   Coleman said he was aware of competing technologies and that Medi-Sense researchers are diligently working on their own noninvasive alternatives.

14.   Dr. Isaac Chuang, a physicist at the IBM Almaden Research Center in San Jose, Calif., described several competing technologies for a working computer.

15.   Each of the three competing technologies now being tested by phone manufacturers and wireless carriers has competing strengths and weaknesses.

16.   How long that can go on is arguable, but with competing technologies on the horizon, the industry is considering some rejiggering.

17.   How will the communications infrastructure be assembled from among competing technologies of copper telephone wire, coaxial and fiber-optic cable, wireless, and satellites?

18.   In wireless communications, there are too many players and too many competing technologies.

19.   Larger technology companies will sometimes enter into a partnership to retard the development of a competing technology.

20.   Now two competing technologies have emerged that use sources with far shorter wavelengths.