The final entry in my "White-Gray-Black" trio of Redstone machines, the Numerophile Black succeeds the Numerophile Gray before it, adding features and improving ones that were already there.

These Numerophile machines sit somewhere between basic adders and full-blown programmable Redstone computers - designed to be capable, but also relatively easy to dissect and understand. The Numerophile Black represents the most capable iteration to date.

System Specs:

• 4-bit ALU capable of addition, subtraction, multiplication, implication, number generation, with functions to zero & invert inputs and outputs.
• 6.125 Bytes of Memory
• Master Bus 2.0 with upgraded/improved controller
• 2 Bytes of storage (capable of saving up to 4 separate outputs)
• 55 total indicators, 7 displays operated by 46 controls
• Error Catch System
• 7 Expansion Ports (2x input, 2x output, 3x individual controls)

Improvements/Additions Over Previous Machine:

• Now capable of multiplication (4-bit output only)
• 4 more bits of storage than offered in its predecessor
• 2-bit Error Code display w/ diagnostic codes and self-correction/resetting
• Improved Master Bus controls
• Much better (in my opinion) user interface than both predecessors