Pronounced "CHA-see." Also called
case, a metal frame that serves as the structural
support for electronic components. Every
computer system requires at least one chassis to house the
circuit boards and wiring. The chassis also contains
slots for
expansion boards. If you want to insert more
boards than there are slots, you will need an
expansion chassis, which provides additional slots.
There are two basic flavors of chassis designs-desktop models and tower models -but there are many variations on these two basic types.