DvD Drive-An optical disc drive that reads and writes all common CD and DVD formats. All modern optical drives that come with personal computers are CD/DVD drives.
Hard Drive- a high-capacity, self-contained storage device containing a read-write mechanism plus one or more hard disks, inside a sealed unit.
Mouse-a pointing device (hand control) that detects two-dimensional motion relative to a surface. This motion is typically translated into the motion of a pointer on a display, which allows for fine control of a graphical user interface.