Frequently Asked Question
How do I expand my Commodore 64 memory?
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Memory Expansion Options
While 64K is substantial, power users can expand their systems for more capability!
Expansion Options
| Product | Expansion | Use Case |
|---|---|---|
| Commodore 1764 | +256 KB RAM | GEOS, large programs |
| 1700 REU | +128 KB RAM | RAM disk, fast loading |
| Cartridge RAM | +8-64 KB | Various applications |
Checking Available Memory
PRINT FRE(0)
A standard C64 shows 38911 bytes free for BASIC programs.
The VIC-20 Memory Map
VIC-20 owners: Your 5K can be expanded to 32K+ with expansion cartridges! Memory expands into these blocks:
- Block 1: 3K expansion ($0400-$0FFF)
- Block 2: 8K expansion ($2000-$3FFF)
- Block 3: 8K expansion ($4000-$5FFF)
- Block 5: 8K expansion ($A000-$BFFF)