The Zilog Z80 is an 8-bit microprocessor introduced in 1976. It was widely used in early personal computers, video game consoles, and embedded systems. The Z80 features a simple architecture, making it easy to program and integrate into various devices. Its popularity stemmed from its performance and affordability compared to other processors of the time. The Z80 has a 16-bit address bus, allowing it to access up to 64KB of memory. It supports a rich set of instructions and has built-in registers for efficient data handling. Many classic systems, such as the Sinclair ZX Spectrum and Tandy TRS-80, utilized the Z80, contributing to its legacy in computing history.