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Z80-RIO

Operating System

The Z80 Operating System with Relocatable Modules and Input/Output management, known as Z80-RIO, is a general-purpose operating system developed by Zilog in the late 1970s. It ran on Zilog's own Z80 Micro Computer System (MCZ-1) series and Z80 Development System (ZDS) hardware, and was used primarily to support software development and automation work, letting programs move from development into production environments. Z80-RIO was closed-source and proprietary, offered a command-line interface, and has since been discontinued along with the hardware families it supported.

Facts
Classification
License
Proprietary (Closed Source) 1
Status
Status
Discontinued 1
Connections

Licensed Under

Entity-backed identity for the license enum value this item already carries, resolved to a software license concept by an explicit value-to-entity map (phase 3 bucket conversion, docs\design_entity_backed_browse_buckets_20260928.md). The license fact itself stays on the item unchanged.

Sources
1. Z80-RIO (Wikipedia)
  • Infobox, License
    Proprietary
  • Infobox, Working State
    Discontinued
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