5. Implementation
On a system that offers a desktop environment,
a window manager in conjunction with applications
written using a widget toolkit are generally
responsible for most of what the user sees.
6. History of DE
The first desktop environment was created
by Xerox and was sold with the Xerox Alto in the
1970s. The Alto was generally considered by Xerox
to be a personal office computer; it failed in the
marketplace because of poor marketing and a very
high price tag.
7. X windows system
On systems running the X
Window System desktop
environments are much
more dynamic and
customizable to meet
user needs.
8. Examples of DE
The most common desktop environment on personal
computers is Microsoft Windows' built-in interface.
It was titled Luna in Windows
XP and Aero from Windows Vista onward. Also
common is Aqua, included with Apple's Mac OS X.