Commodore VIC-20 User Manual page 68

2 GOTO 1
RUN
When RUN is typed, the screen should fill with columns of blue
balls. Let the balls flow by for awhile and then press ETB ■
Pressing pCl causes the BREAK and READY messages
to appear. Now, typej,
1 PRINT", "R
The two reverse image characters are the symbols the VIC puts
in a message field when you hold down I,., | and press
the JZfj and J£Dk keys.
After you have typed the new line, tell the VIC to RUN this
example:
Type: RUN
What happened to the balls? Press the
key to slow
down the PRINTing. There are now columns of blue rectangles
with white holes in them. Can you guess why?
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