21.   According to Jobs, computer users need supercomputer power because so many tasks, from encrypting Internet messages to processing digital video, slow ordinary PCs to a crawl.

22.   Agency spokesmen have questioned whether civilian users need the detailed map data.

23.   AirTouch spokeswoman Kathy Reinhart says users now need to follow a link to the Vodafone corporate site to find the address.

24.   Almost every computer user needs a word-processing program, and most can make at least occasional use of a spreadsheet, database and graphics tools.

25.   But critics such as Kansas wheat shipper William York say that in the face of giant mergers, rail users need more protection, not less.

26.   But Dr. John Kella, an ergonomics consultant to The New York Times, said touch-pad users still needed to be careful.

27.   But only Macintosh users need apply this time, and the attraction is basically off line.

28.   But the user just needs a telephone.

29.   But the user needs to know what phone calls are local, as well as a five-digit prefix for your long-distance company.

30.   But users need to have some patience and pay attention to detail.