Commodore VIC-20 User Manual page 25

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The screen will fill with blue hearts! Count the number of
hearts being printed across the screen. There are 22 of them in
each row. The VIC has 22 PRINT positions across the screen,
The positions across the screen are sometimes called columns.
The VIC has 22 columns.
How many positions are there down She screen? Press the
key to slow down the PRINTing. Holding the |-i J key
causes the last four raws to "flash". The VIC has 23 rows
down the screen.
COLUMN
R
O
0
1
2
3
A
5
G
7
8
D
10
W"
S12
13
14
15
16
17
18
19
20
21
22
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 16 19 20 21
\f 23 rows\
Hmm.
23 x 22 =
506
screen locations