70 a$=INKEY$
80 IF a$="" GOT0 70
90 NEXT
100 GOTO 20
The above illustrates a further important point concerning the representation of style in this
manual. Some program listing lines will wrap (over run the line end) and it is important to note that
when we print the listings, the additional spaces occuring after a line break are not required in the
program itself - they are inserted just to tidy up the listing.
This doesn’t illustrate all the possible combinations of shades of grey (colours), but if will give an
idea of what’s available. When you find a combination you like, stop the program using the [ESC]
key twice (a *Break* message will occur).
From here on, the guide will be making many references that are specific to the colour monitor
option. Programs that display interesting colour and graphics effects may appear nearly invisible on
the monochrome monitor, although great care has been taken to produce a range of colours with a
progression of corresponding grey levels (described more fully in chapter 5).
The advantage of the monochrome monitor is the crisper and less fatiguing display when doing
program development - but if and when you find that you are bitten by the computing bug, then
there’s little hope of you avoiding the inevitability of getting the colour option as well!
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