Original sentence: The most commonly-used compositing window managers are the Desktop Window Manager in Microsoft Windows, the Quartz Compositor in Mac OS X, and Compiz,Metacity and KWin for Linux, FreeBSD and OpenSolaris systems
Edited sentence: The most commonly-used compositing window managers are the Desktop Window Manager in Microsoft Windows, the Quartz Compositor in Mac OS X, and Compiz, Metacity and KWin for Linux, FreeBSD and OpenSolaris systems