The Zilog Z80 processor, launched in July 1976, has reached its 50th anniversary. This 8-bit microprocessor achieved significant success, powering numerous microcomputers, early personal computers, and industrial applications. Its binary compatibility with the 8080 and 8085 chips helped establish a de facto hardware standard, paving the way for software standards like CP/M and Microsoft BASIC.

The Z80's influence extended to derived architectures, notably the Sharp LR35902 in the original Game Boy. Zilog itself continued to produce Z80-based microcontrollers and variants for industrial use, only discontinuing the original chip two years ago.

The Z80's origins trace back to the Datapoint 2200 terminal and Intel's subsequent 8008 processor. The 8008, though innovative, had limitations that spurred the development of the improved 8080, designed by Federico Faggin and Masatoshi Shima, with input from early customer feedback.