Meaning and Elements of Computer System Video Lecture - SSC CGL Tier 2

today we are going to have the three
fundamental elements of computer let us
start with the first one the system unit
second we have the output devices and
third we have the input devices once
again the system unit the output devices
and the input devices let us try to
discuss the first one the system unit or
the processing unit this is the core of
a computer and responsible for
processing and storing data and controls
all computer functions it is in the
system unit that raw data is processed
into information this is also the place
where the input data change and usually
combined with other information to put
this data into a more useful form second
element we have the input devices we
have a lot of input devices but two of
the most popular pretty keyboard and the
mouse this is a stage where the original
data or input data are arranged into
some convenient form of processing input
devices allow users to provide a
computer with commands software
instructions and information input
devices are the pathways through which
information enters the computer system
unit and now let us try to
the third element the output devices
output devices like the monitor printer
and speakers this is the final stage
where the result from the original input
having undergone processing are
collected these are also the physical
equipment which translate the outcome of
the computations and related activities
carried out in the CPU its objective is
to convert data and information into a
form such as printed report or visual
display that can be understood by humans
and so we do something in our computer
data processing always starts in the
input devices those data and information
that we enter through the use of the
input devices will go to the system unit
for processing after those data were
process they will go directly to our
output devices as audio or visual
display
you