11.   For Organic, the days of buying used computers and running a business out of a spare bedroom are over.

12.   Further examination of the issue now finds that there are already widely used computer programs that make it possible to trace documents to their source.

13.   Given that, a used computer is a real bargain.

14.   He helped Maria get a used computer.

15.   He secretly hawked candy in the school corridors, bought and sold used computers, and kept a stand at a local flea market.

16.   Here are some tips to buying a used computer.

17.   I purchased a used computer at a reasonable cost.

18.   If all goes right, the young vulture will fly home to his warehouse roost in Emeryville with a pile of used computers and office furniture.

19.   Ms. Arrington said she saw an increasing number of individual consumers joining the mix of schools, businesses and government offices buying used computers.

20.   None of the five most widely used computers in Europe is European-made.