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Portable computer
There are four basic types of
portable
computer
:
the
laptop
(or
desknote
) with conventional
screen
and
keyboard
, requiring a seated position and both hands
the
palmtop
which is something between laptop and PDA.
the
Personal digital assistant
(PDA), usually held in one hand and operated with the other.
the
wearable computer
with
handsfree
interface
, and usually some voice capability (
speech recognition
and
speech synthesis
).