Engineer Runs a Telnet BBS Server on a Casio Calculator

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A hobbyist has successfully set up a functional Telnet Bulletin Board System (BBS) running on a Casio calculator. The project was documented on August 16, 2026, on the creator's personal blog. The build demonstrates that the modest hardware of a Casio calculator is capable of hosting a networked BBS accessible via Telnet. The project attracted attention on Hacker News, where it garnered early interest from the tech community.

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