The improbable music of the ZX Spectrum's one-bit speaker

The Register
Sep 13, 2026, 9:00 am120 pts
Even for 1982, the Sinclair ZX Spectrum had poor sound: a piezoelectric speaker that could beep. But you can do a lot with a single bit if you turn it on and off really fast. Michael Martin's Bumbershoot Software site has done some fascinating deep dives into several long-gone computer systems, including a…

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