下位互換

かいごかんkaigokan

adjectival · noun

1. upward compatible
2. forward compatible
3. compatible with input or components intended for higher tier or later systems, versions, etc.
4. downward compatible
5. backward compatible
6. compatible with input or components intended for lower tier or older systems, versions, etc.
7. providing the same function while being less effective (esp. in games)

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