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4-bit CPU
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4-bit computing - Wikipedia
Building a 4-Bit Computer from the Ground Up - EEWeb
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EmZeh14500
4-bit CPU
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Minimalist 4-bit Processor Focused on Processors Theory Teaching | Semantic Scholar
4-Bit Computer – Waiting for Friday
programming - What could one do with a 4 BIT computer made out of discrete logic gates? - Electrical Engineering Stack Exchange
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Custom 4-Bit CPU Schematic and Control | Big Mess o' Wires
The Z-80 has a 4-bit ALU. Here's how it works.
