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Changing Screen Dimensions on the Commodore VIC-20

To make the most of the limited amount of memory on the VIC-20, we can increase and decrease the screen size depending on our program's priorities and what we want to achieve. If we increase the size ...   Read More

Moving the Picture Origin on the Commodore VIC-20

The VIC-20's VIC chip provides a simple yet flexible video display and one of the features that can be quite useful is the ability to alter the picture origin on the screen. This feature allows us to ...   Read More

DABAR: A Hebrew Vocabulary Drill System on CP/M

I recently came across an interesting program called DABAR to drill Hebrew vocabulary. The program works in a similar way to flash cards, by displaying a word in Hebrew and then asking for its English...   Read More

Spreadsheets on the Commodore VIC-20

The VIC-20 had a number a spreadsheet programs released for it which despite the limited resources of the Vic could actually be quite usable. The two best known are SimpliCalc and PractiCalc, but ther...   Read More

40 Columns in Basic on the Commodore VIC-20

There are a number of programs that allow you to use 40 columns of text from Basic on a Commodore VIC-20. This can be useful as by default the Vic's screen is 22 columns by 23 rows. They are supplied...   Read More

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