Chorded
Keyboard
•Associate
actions with combinations of key presses
•As
many combinations available, chorded keyboards can effectively produce more
actions on a board with fewer keys
•Court
reporters mostly use them
Software
or Virtual Keyboards
•is
a software component that allows a user to enter characters.
•usually
be operated with multiple input devices,
–Touch
screen,
–Actual
keyboard and
–Mouse.
Foldable Keyboards
•made
of soft plastic or silicone which can be rolled or folded on itself for travel
•When
in use, these keyboards can conform to uneven surfaces, and
•are
more resistant to liquids than standard keyboards.
•connected
to portable devices and smart phones.
Projection
Keyboard
•project
an image of keys, usually with a laser, onto a flat surface.
•The
device then uses a camera or infrared sensor to "watch" where the
user's fingers move
•Projection
keyboards can simulate a full size keyboard from a very small projector.
Wireless
Keyboard
•provides
increased user freedom
•includes
a required combination transmitter and receiver unit that attaches to the
computer's keyboard port.
•The
wireless aspect is achieved either by radio frequency (RF) or by infrared (IR)
signals sent and received from both the keyboard and the unit attached to the
computer.
•A
wireless keyboard may use an industry standard RF, called Bluetooth.
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