21.  Older people have disposable income and leisure time, key factors in their willingness and ability to buy and use computers.

22.  Practise using the computer until you feel at home with the mouse and keyboard.

23.  Scientists use computers to help analyse the data.

24.  Some artists use a computer to generate altered versions of an original.

25.  Some one who uses different computers at home and at work will need two digital signatures.

26.  That contrasts with three out of five Anglo children who use a computer at school.

27.  The computer is not used as a genius assigned moronic tasks of accumulating data for the sheer electronic thrill of it.

28.  They had little faith that the hoi polloi would very soon be using computers.

29.  They used a computer to model the possible effects of global warming.