I think it depends on what type of computer or operating system you have.

Most experts find that a 95 percent market share in personal computer operating systems is a monopoly.

Many computer operating systems have included speech synthesizers since the early 1990s.

The following refers to screens of death that are not based upon computer operating systems and appear instead in other media.

This course is designed to introduce students to the basic theory and structure of a computer operating system.

Most computer operating systems use the terms described above.

MacMach is a computer operating system from the early 1990s.

Then, in the late 80's, the companies agreed to work together on personal computer operating systems.

A computer operating system is a master program that controls a computer's functions.

But personal computer operating systems now coming into wider use will support several tasks.