Dell OptiPlex Gxi - Manual (Page 69)

Working Inside Your Computer 5-5
Switches
Switches control various circuits or functions in your
computer system. The switches you are most likely to
encounter are dual in-line package (DIP) switches, which
are normally packaged in groups of two or more switches
in a plastic case. Two common types of DIP switches are
slide
switches and rocker switches (see the following
illustration).
slide switches rocker switches