Ready Reckoner on Computer by students of SR Digi School, Patakmohalla, Warangal
M Sindhu Priya (VII) and K Smarani (VII)
Entry Submission against iEXPRESS competition - part of Project Based Learning using ICT 2012-13
2. s.no Topic Features PICTURES
1 Cpu The full form of cpu is cen-
tral processing unit .it is an
input device it stores a lot
of data in it.
2
Key
board
Key board is used for
mainly for typing text in
your computer. Like the
key board on a type writer
it has keys for letters &
numbers, but it also has
special keys.
3 Monitor A monitor displays infor-
mation in visual form using
text &graphics. The portion
of the monitor that dis-
plays is called screen. Like
a TV screen, a computer
screen can shows still or
moving pictures.
4 Printer Printer is an output device.
Printer is useful to print
data in the paper.
3. 5 Speaker A speaker is an output de-
vice. Speakers are useful to
hear music or sound
6 Data Data can be defined as raw
information about a certain
topic.
7 Input device An input device sends infor-
mation to the computer.
8 Output device An out put device retries
information from the com-
puter
9 Computer Computer is an electronic
machine. We can use it for
many purposes like chat-
ting, face book, internet,
downloads, booking etc.
10 mouse A mouse usually has two
buttons ,a primary button
&a secondary but-
ton ,between two
4. 11 modem To connect your computer
to the internet, you need a
modem. A modem is a de-
vice that sends &receives
computer information.
12 System unit The system is the core of
computer system usually in
a rectangular box placed on
or underneath your desk.
Inside this box they are
many electronic compo-
nents that process informa-
tion. The most important of
this component is central
processing unit uses
, which act as brain of com-
puter. Another component
is random access memory
card which temporarily
stores information that the
central processing unit uses
while the computer is on.
The information stored on
ram is erased when the
computer is turned off. Al-
most every other part of
your computer connects to
the system unit using ca-
bles. This cable plug into
specific ports, typically on
the back of the system unit.
Hard ware is not part of the
system unit is sometimes is
called peripheral device
order.
