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There are cartridges for the VIC-20 and C64, made by Commodore, called, "Super Expander", which adds graphics and sound commands to BASIC. The VIC-20 model also
by timbit42 4y ago
There are cartridges for the VIC-20 and C64, made by Commodore, called, "Super Expander", which adds graphics and sound commands to BASIC. The VIC-20 model also adds 3KB of RAM.
Another option is Simons' BASIC which adds graphics, sound and lots of other commands to BASIC on the C64.