is an instance of a
computer program that is
being executed. It contains
the program code and its
current activity
micro-processor is an
integrated that
contains all or most
of the individual
elements of a CPU
operating systems are a
low-level software that
supports a computer's
basic functions
Output
is any device used to
send data from a
computer to another
device or user
The monitor is the piece of
computer hardware that
displays the video and
graphics information
generated by the computer
through the video card
printers
Laser printers are
quite expensive to
buy and run but
produce a high
quality output and
are quiet and fast
Ink-jet printers offer black
and white or colour
printing with reduced
levels of quality and speed.
Colour ink jet printers are
cheaper to buy than colour
laser printers.
Dot matrix printers are
comparatively noisy
and low quality but are
cheap to run and are
used when carbon
copies or duplicates
need to be made, such
as for wage slips.
speakers produce an
audio output that can be
heard by the listener
Input
it provides data
and controls
signals to the
computer or
machine
a mouse is used to
perform actions of a
cursor on a monitor
keyboard is used
to display certain
numbers, symbols
and letters on a
screen
scanner is a device that
scans images or documents
which can then be imported
into a computer