|  Hardware - MOS 6529B | | Name: | MOS 6529B |
| AKA: | Single Port Interface |
| Category: | Chip |
| Introduced: | 1984 |
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| | This chip is responsible for keyboard I/O mainly. All the 264 machines have at least one of this, where the Plus/4 has another one, in order to manage the user port. |
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