Computer Hardware

Computer monitor a screen that displays output from a computer.
Computer keyboard a set of keys used to input information to a computer
Mouse an input device 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.

printer a piece of hardware for a computer. It is a device that must be
connected to a computer which allows a user to print items
on paper, such as letters and pictures. It can also work with
digital cameras to print directly without the use of a computer.

speaker a term used to describe the user who is giving vocal commands
to a software program.

Image scanner which digitizes a two-dimensional image

central processing unit (CPU) A hardware within a computer that carries out
the instructions of a computer program by performing the
basic arithmetical, logical, and input/output operations of the
system.

modem (modulator-demodulator) a device that modulates an analog carrier signal to
encode digital information and demodulates the signal to
decode the transmitted information.

computer case known as a "computer chassis", "tower", "system unit", "base
unit" or simply "case" and sometimes incorrectly referred to as
the "Computer" or "hard drive", is the enclosure that has the
stuff of a computer