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Hardware Components ofComputer Part I
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Desk Top computer
A personal or micro-mini computer sufficientto fit on a
desk.
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Laptop
A portable computer complete with an integratedscreen and
keyboard. Also having rechargeablebattery ( which can work for few
hours with-out
power)
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TABLET PC
TOUCH SCREEN
ROTATION SENSER
CAN ACCESS INTERNETTHROUGH SIM CARD
Eg:- I-PAD (APPLE); GALAXY TAB
(SAMSUNG); Aakash (DATAWIND)
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Main Frame Computer / Server
A very large and expensive computer capable ofsupporting
hundreds, or even thousands, of userssimultaneously
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There are four types of Hardware devices
presents in a COMPUTER
1.Input Device
2.Output Device3.Processing Device
4.Storage Device
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Input Device are that device by
which we can make input data &instruction to the computer
for
storing and processing the data as
per instruction.
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1.Normal Key BoardKeyboard
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2.Multimedia Keyboard
Keyboard
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1. The main part of a computer keyboardhas
alpha-numeric(letter and number) keys
similar to a typewriter.
2. The Function keys, along the top of the
keyboard, are labeled F1, F2, up to F12.These shortcut keys
allow you to quickly
complete a specific task within certain
programs.3. The Number pad, at the far right end of the
keyboard, resembles a calculator keypad.
MAIN PART OF A COMPUTER KEYBOARD
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The mouseis a hardwarethat isknown as a pointing device . Itlets
you pointto objects on the
screen, clickon them, and move
them.
Mouse
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1.Roller Ball Mouse
Or Mechanical Mouse
INPUT DEVICE
Mouse
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2.Optical Mouse
INPUT DEVICE
Mouse
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Document Scanner
CONVERTS HARD COPY TO SOFT COPY
A scannerallows you to copy an
image or documentand save it inelectronic form onto your
computer.
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Bar Code Scanner
Used in shopping center & warehouseto keep track of
stock.
In card attendance system
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Magnetic Strip Reader (MSR)
Used in shopping center for credit card
or debit card payment.
In card attendance system
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Joystick
For playing games For scrolling specially in case of mobiles
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Output Device are that device
by which we can get outputinformation or processed data
from the computer as per ourneeds.
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1.Cathode Ray Tube (CRT)
MONITER
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2.Thin Film Transistor (TFT)
MONITER
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3.Liquid Crystal Display (LCD)
MONITER
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4.Light Emitting Diode (LED)
MONITER
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Sound system (7.1 & 5.1)
Speaker; head phone; ear phone
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PRINTER
A printeris a peripheralthat is usedto print, or produce, a
version of what
appears on the screen in a hardcopyformat.
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1.Desk Jet printer/ Dot Matrix
ribbon as cartridge
PRINTER
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2.Laser Printer
powder as cartridge
PRINTER
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3.Ink Jet Printer
liquid as cartridge
PRINTER
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Projector
Use in cinema hall; seminar ; meeting
