What are the functions of a computer?

While the
functions and applications
of a computer are almost endless, we can sense four primary purposes
that are
all linked to data (information):  Entering data, manipulating data, viewing
processed
data, and storing data.  Computers are designed to transform raw
data into information.  The
computer operates under the control of
instructions stored in its own memory unit and can accept
inputted data,
process it aritmethically and through sequenced based logic, produce
information,
and store the results for future use.  All the applications of a
computer derive from this basic
starting point.