Observed arrival · 2026-09-19
ドパベン！ Makes Computer Logic Touchable
A Japanese learning site that teaches computer arithmetic and memory through interactive logic-circuit experiments.
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- For
- Japanese learners curious about computer fundamentals
- Worth noticing
- The homepage organizes arithmetic into 11 experiments and memory into a two-part sequence.
Field notes
The site uses a half-adder simulator as its entry point, asking visitors to toggle A and B before explaining the result. Its visible curriculum then expands from four-state binary arithmetic into carries, signed values, overflow, multiplication, division, fixed-point ideas, rounding, and memory. An advanced mode is listed with one-step execution and step counts, while the memory section uses an SR latch to demonstrate both storage and unstable simultaneous inputs.
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue