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| | Atari 2600 - Encyclopedia, History, Geography and Biography |
 | | Unlike prior generations of machines which used custom logic to play a small number of games, Stella's core was a complete CPU, the famous MOS Technology 6502 in a cost-reduced version, known as the 6507. |
 | | It was combined with a RAM-and-I/O chip, the MOS Technology 6532, and a display and sound chip of their own design known as the TIA, for Television Interface Adaptor. |
 | | The CPU was the MOS Technology 6507, a cut-down version of the 6502, running at 1.19 MHz in the 2600. |
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