Related Terms. 1  operating system virtualization. 2  mobile operating system (OS). 3  OS-operating system. 4  server operating system. 5  system. 6  Microsoft Windows XP operating system. 7  Linux OS (Operating System). 8  paravirtualized operating system. 9  NOS-network operating system. 10  Chrome OS.
Prune and shape evergreen shrubs to provide year-round hedges, ground covers and privacy screens in your yard. The scarlet firethorn (Pyracantha coccinea) and Chinese holly (Ilex cornuta) shrubs produce red-colored berries and dark-green leaves.
Types of Trees Although region plays a large part in what types of evergreens are available, Dungey finds the most popular varieties are balsam fir, Douglas fir, noble fir, Scotch pine, Virginia pine, and eastern white pine mainly because of how easy they are to grow.