Ted Fried's MicroCore Labs has developed a collection of emulation boards that replace classic microprocessor chips with modern equivalents. According to Adafruit, these projects include the MCL6809—a Motorola 6809E emulator running on a Teensy 4.1—and the MCLZ8, a Zilog Z80 emulator. Designed as drop-in replacements, these boards let vintage computer systems run without hunting down increasingly rare original chips, effectively preserving obsolete hardware through modern software emulation.

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