A large number of computer makers packaged microcomputers for use in small business applications.

A number of other computer makers and software publishers are attempting to offer capabilities similar to Acrobat's.

I.B.M. is among a number of computer makers promoting multimedia personal computers.

A number of personal computer makers are also promoting compact disk-based multimedia technology for their machines.

A number of computer makers are betting that the pen is mightier than the keyboard.

The company does not build computer hardware, but it is working with a number of computer makers on a hand-held device called a Windows Companion.

A number of computer makers have recently introduced extensive consumer telephone-support services in an effort to directly reach their customers.

Its processors are more expensive and slower than those of a number of smaller computer makers, analysts say.

There have been similar reductions in the number of computer makers and suppliers of computer services.

A number of other computer makers and telephone companies have already entered the personal computing teleconferencing market.