A computer along with additional hardware and software together is called a computer system. A computer system primarily comprises a central processing unit (CPU), memory, input/output devices and storage devices. All these components function together as a single unit to deliver the desired output.

1. COMPUTER
SYSTEM
PRESENTED BY: ROHIT RAWAT

2. WHAT IS COMPUTER?
->The word is derived from ‘compute’, which means to
calculate.
->A computer is an electronic device thet can perform a
variety of tasks by executing a given set of instructions.
->It is a versatile and can handle multiple tasks like
documentation,accounting,designing,airlines,railways and
other bokings,weather forecasting and many more.

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ORGANIZATION OF COMPUTER
SYSYTEM

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CENTRAL PROCESSING
UNIT
A central processing unit(CPU) is
the lectronic circuitry within a
computer that carries out the
instructions of a computer
program by performing the basic
arithmetic,logical,control and
input/output (i/o)operations
specified by the instructions.

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MONITOR
. A monitor or a display is
an electronic visual display
for computers.
. The display device in
modern monitors is tipically
a thin film transistor liquid
crystal display(TFT-LCD)
thin panel, while older
monitors used a cathode
ray tube (CRT)
about as deep as the
screen size

6. MOUSE
In computing, a mouse is a
pointing device that
detects two dimensional
motion relative to a
surface.This motion is
typically translated into
motion of a pointer on a
display,which allows
for fine control of a
graphic user interface.

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KEYBOARD
-> A keyboard typically has characters engraved or printed on the
keys and each press of a key typically corresponds to a single
written symbol.
->However, to produce some symbols requires pressing and
holding several keys simultaneously or in sequence. while most
keyboard keys produce letters, numbers or signs(characters), other
keys or simultaneous key presses can produce actions or execute
computer commands.

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PRINTER
In computing, a printer is a peripheral which makes a
presistent human readable representation of
graphics or text on paper or similar physical media.

9. MODEM
A modem (modulator-demodulator) is a device that modulates
signals to encode digital information anddemodulates signals
to decode the transmitted information

10. SPEAKER
Computer speakers , or multimedia speakers, are
speakers external to a computer ,that disbale the
lower fidelity built-in speaker.

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CHARACTERISTICS OF A COMPUTER
1. Speed
2. Accuracy
3. Reliability
4. Storage capacity
5. Versatility
6. Reduction in Manpower
7. Reduction in Paper Work

12. FROM
ROHIT SINGH RAWAT

13. THANK YOU