This 4KB chip stores the visual representation of the PETSCII character set. PAL vs. NTSC Differences
This 8KB ROM contains Commodore BASIC v2.0. Interestingly, this chip is generally identical across both North American (NTSC) and European (PAL) models. Download [BIOS] Commodore VIC-20 (Europe)
For enthusiasts using emulators like or hardware replacements like the VIC-20 Penultimate + , these files must be placed in specific system directories to function. This 4KB chip stores the visual representation of
The "heart" of the system. This version is specifically timed for PAL regions. It handles input/output operations, memory management, and hardware initialization. Download [BIOS] Commodore VIC-20 (Europe)
Default horizontal and vertical screen offsets are adjusted to center the image on European TV sets.