|  Hardware - MOS 7501/8501 | | Name: | MOS 7501/8501 |
| AKA: | CPU |
| Category: | Chip |
| Introduced: | 1984 |
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| This is the CPU of the 264 family of computes. The 7501 is a modified version of the 6502.
The difference between the numbers (7501/8501) is that they were manufactured with different technologies:
7501 is manufactured with HMOS-1
8501 is manufactured with HMOS-2
(Keywords: Plus/4 CPU, C16 CPU.)
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| | 8501R1 (TH) | 
Made in Thailand, different font for printed text. |
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| | CSG 8501 | 
A CSG (Commodore Semiconductor Group) branded 8501, manufactured week 14, year 1990. |
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| | Michael Tomczyk's 7501R1 0184 | 
Taken fron the Commodore 264 prototype originally owned by VIC20's creator Michael Tomczyk. |
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