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The Zilog Z80 is an 8-bit microprocessor designed by Zilog that played an important role in the evolution of early computing. Launched in 1976, it was designed to be software-compatible with the Intel 8080 , offering a compelling alternative due to its better integration and increased performance.
All of the major 8-bit CPUs were tested, including the Intel 8080, Zilog Z80, Motorola 6800 and MOS 6502. For comparison, they also ran it on a CDC Cyber 174 supercomputer , which is so fast that they had to add code to time the run using the system's clock as they could not operate a stopwatch quickly enough.
Zilog subsequently announced an agreement to manufacture the WE32100 chipset for a five year period, being the first alternative source of these products. [51] There was a Z8000 version of the Xenix Operating System. [52] In 1982, Digital Research and Zilog announced an agreement to make CP/M available for the Z8000. [53]
The Z80 Operating System with Relocatable Modules and I/O Management (Z80-RIO) is a general-purpose operating system developed by Zilog in the late 1970s for various computer systems including the Z80 Micro Computer System (MCZ-1) series [1] and the Z80 Development System (ZDS). [2]
The NEC μCOM series is a series of microprocessors and microcontrollers manufactured by NEC in the 1970s and 1980s. The initial entries in the series were custom-designed 4 and 16-bit designs, but later models in the series were mostly based on the Intel 8080 and Zilog Z80 8-bit designs, and later, the Intel 8086 16-bit design.
Zeus is a two-pass assembler which uses the standard Zilog Z80 instruction set mnemonics. It was one of the first assemblers to tokenise source code as it is entered, along with MAC/65 for the Atari 8-bit computers , similar to how many BASIC implementations work.
The Dick Smith Super-80 was a Zilog Z80 based kit computer developed as a joint venture between Electronics Australia magazine and Dick Smith Electronics.. It was presented as a series of construction articles in Electronics Australia magazine's August, September and October 1981 issues.
The Micro-Professor MPF-I is a microcomputer released by Multitech (later renamed Acer) in 1981.The company's first branded product, it was marketed as a training system to learn machine code and assembly language for the Zilog Z80 microprocessor.