Using the Control Panel
If you look at the display produced by the Control Panel you can see in the top
left-hand corner a box containing the word 'Mode' followed by a number. This
sets the screen mode which the computer will use when it is switched on. You
can change it by clicking within the box or by using the '+' and '--' keys on the
numeric keypad to increase and decrease it. In fact, all of the options discussed
below may be changed either by using '+' and '--' to increase and decrease
values by one, or by pressing
at the same time in which case values will
be altered in steps of ten.
Below 'Mode' is the 'TV' option. This allows the position of the picture the
computer generates to be moved up and down on the monitor. It is equivalent
to the first parameter of the *TV command. The 'Interlace' option controls
whether the video interlace is on or off; you can change it by clicking.
In the next box down are three keyboard options: 'Delay', 'Repeat' and the Shift
status. The first sets the time delay before keys which are held down will
automatically repeat (in hundredths of a second). The second sets the speed
with which such keys will be repeated. The final option controls whether the
Caps Lock light is set to CAPS LOCK, SHIFT CAPS or NO CAPS.
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