A reader points us to this story from mozillaquest.com. "The Microsoft Windows operating system (OS) comes with some pre-installed, basic, productivity tools for word processing and other office or school productivity chores. So do many Linux distributions come with pre-installed, basic, productivity tools.
These pre-installed tools generally are simple, stripped-down, lightweight, applets. Nevertheless, they are handy and can be useful for simple tasks.
In like manner, the Linux-based K desktop (KDE) comes with some pre-installed productivity-tool accessories too. Our primary interest in learning to use these lightweight Linux productivity tools today is to get familiar with starting, running, and using Linux programs -- and to get comfortable using the Linux desktop."