Hardware refers to any part of computer that can be touched which may be in the form of electronic, mechanical or plastic parts e.g. keyboard, monitor, mouse etc these parts can be classified under the following : inputs is the act of sending data and instructions.
LECON I: INPUTS DEVICES
It refers to those part of the computer use for sending data and instruction into the computer e.g. keyboard, mouse.
I. Input processing device
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input
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Processing device
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Storage device
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Output device
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Keyboard
Mouse
Touch pad
Sensor
Bar code reader
Remote control
Optical mark
Reader
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RAM
CPU(processor)
System bus
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CD(compact disk)
DVD(digital video disk)
ROM
Hard disk
USB key
Magnetic tape
Blu-Ray disk
DIAB
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Monitor
Printer
Speaker
LED
Projector
Touch screen
actuator
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There are many types of input devices. These input device can be classified under the following meaning:
II. MANUAL INPUT DEVICES
These are devices used by the operator manually or physically to transmit data into the computer.
Advantages of manual input devices
- They are less expansive to buy
- It is easy to refer and maintain manual input devices
- They are good for small volume text
Disadvantages
- It often result to health related problem
- They are not very accurate and even result to mistake error
- They are not very fast in transmitting information,
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Manual input
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Automatic input
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Multi mucli
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Special
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mouse
touch screen
touch part
truck ball
light pen
keyboard
graphic tablet
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sensor
digital camera
bar code reader
optic code reader
magnetic strip
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video camera
MIIDI
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concept keyboard
eye japper
fool mouse
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