Java Reference
In-Depth Information
407
A Graphical Software Environment for the Linux Operating System
ȗ Printing. The operating system queues up the print requests that are sent by
multiple applications. This is necessary to make sure that the printed pages
do not contain a mixture of words sent simultaneously from separate
programs.
ȗ Windows. Many operating systems present their users with a desktop made
up of multiple windows. The operating system manages the location and
appearance of the window frames; the applications are responsible for the
interiors.
ȗ Fonts. To render text on the screen and the printer, the shapes of characters
must be defined. This is especially important for programs that can display
multiple type styles and sizes. Modern operating systems contain a central
font repository.
ȗ Communicating between programs. The operating system can facilitate the
transfer of information between programs. That transfer can happen through
