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to different types by selecting “Simple”, “Fraction”, “Scientific” and “Conversion”.
1.9 Terminal
A terminal is a widely used interactive interface in Linux. Users type commands in a
terminal to operate the system. You can set up or open a terminal in various ways:
On system startup, if a terminal is bound to the serial port all its outputs and inputs are to
and from this serial port. This is a common Linux way.
On system startup if a terminal is bound to a graphic device (such as LCD or CRT) and
the keyboard is set to the input device then an independent input/output system will be
established.
When a graphic device is connected and a GUI is integrated a GUI based “command
terminal window” will be established. Users can interact with the system either via a
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