The Z80 Operating System with Relocatable Modules and I/O Management (Z80-RIO) is a general-purpose
operating system
An operating system (OS) is system software that manages computer hardware, software resources, and provides common services for computer programs.
Time-sharing operating systems schedule tasks for efficient use of the system and may also in ...
developed by
Zilog
Zilog, Inc. is an American manufacturer of microprocessors and 8-bit and 16-bit microcontrollers. It is also a supplier of application-specific embedded system-on-chip (SoC) products.
Its most famous product is the Z80 series of 8-bit microp ...
in the late 1970s for various computer systems including the ''Z80 Micro Computer System'' (MCZ-1) series and the ''Z80 Development System'' (ZDS). The MCZ systems were primarily used for software development and automation solutions. RIO was designed to facilitate the development and integration of user's programs into a production environment.
[Z80-RIO OPERATING SYSTEM USER'S MANUAL](_blank)
/ref>
Features
The system provides a ''modest environment'' with a minimum of system support and an ''enhanced environment''.
The ''modest environment'' provides a program debugger with file manipulation capability, a floppy disk
A floppy disk or floppy diskette (casually referred to as a floppy, or a diskette) is an obsolescent type of disk storage composed of a thin and flexible disk of a magnetic storage medium in a square or nearly square plastic enclosure lined w ...
driver (supporting up to eight disk drives), and a basic console driver with provision for paper tape
Five- and eight-hole punched paper tape
Paper tape reader on the Harwell computer with a small piece of five-hole tape connected in a circle – creating a physical program loop
Punched tape or perforated paper tape is a form of data storage ...
operation.
The ''enhanced environment'' provides access to the ''RIO Executive'' and to system support utilities such as the ''Zilog Floppy Disk File System'' (ZDOS), and the ''Zilog Hard Disk File System'' (DFS). It also provides access to a number of disk-resident software such a text editor
A text editor is a type of computer program that edits plain text. Such programs are sometimes known as "notepad" software (e.g. Windows Notepad). Text editors are provided with operating systems and software development packages, and can be us ...
, macro assembler
Macro (or MACRO) may refer to:
Science and technology
* Macroscopic, subjects visible to the eye
* Macro photography, a type of close-up photography
* Image macro, a picture with text superimposed
* Monopole, Astrophysics and Cosmic Ray Observato ...
, and linker.
Commands
The following list of commands are supported by Z80-RIO.COPY
Copy may refer to:
*Copying or the product of copying (including the plural "copies"); the duplication of information or an artifact
**Cut, copy and paste, a method of reproducing text or other data in computing
**File copying
**Photocopying, a pr ...
* COPY.DISK
* COPYSD
* DATE
* DEACTIVATE
* DEALLOCATE
* DEBUG
In computer programming and software development, debugging is the process of finding and resolving '' bugs'' (defects or problems that prevent correct operation) within computer programs, software, or systems.
Debugging tactics can involve int ...
* DEFINE
* DELETE
* DISK.FORMAT
* DISK.REPAIR
* DISK.STATUS
* DISPLAY
* DO
* DUMP
* ECHO
* EDIT
* ERROR
* ERRORS
* EXTRACT
* FORCE
* FORMAT
Format may refer to:
Printing and visual media
* Text formatting, the typesetting of text elements
* Paper formats, or paper size standards
* Newspaper format, the size of the paper page
Computing
* File format, particular way that informatio ...
* HELP
Help is a word meaning to give aid or signal distress.
Help may refer to:
Arts, entertainment, and media
Films
* ''Help'' (2010 film), a Bollywood horror film
* ''Help'' (2021 theatrical film), a British psychological thriller film
* '' ...
* IMAGE
* INITIALIZE
* LADT
* LINK
* MASTER
* MEMORY
* MOVE
* PAUSE
* RELEASE
* RENAME
Rename may refer to:
* Rename (computing), rename of a file on a computer
* RENAME (command), command to rename a file in various operating systems
* Rename (relational algebra)
In relational algebra, a rename is a unary operation written as \r ...
* RESTORE_TABS
* SAVE_TABS
* SET
Set, The Set, SET or SETS may refer to:
Science, technology, and mathematics Mathematics
*Set (mathematics), a collection of elements
*Category of sets, the category whose objects and morphisms are sets and total functions, respectively
Electro ...
* STATUS
* VERBOSE
* XEQ
Clones
''UDOS'', a Z80-RIO compatible clone by VEB Robotron, was available for a number of computers by the same company, such as the A 5120
The A 5120 was an office computer produced by VEB Robotron in Karl-Marx-Stadt (now Chemnitz), East Germany starting in 1982. The system featured an 8-bit microprocessor, the U880. It was built for office work and had minimal graphics and sound c ...
or the PC 1715
The PC 1715 was an office computer produced by VEB Robotron in East Germany starting in 1985. The system featured an 8-bit microprocessor, the U880, a clone of the Zilog Z80. It was built for office work and education, but also had an interface for ...
, which were based on the U880 processor (the latter being a clone of Zilog's Z80). UDOS was also one of the operating systems available for the P8000
The P8000 is a microcomputer system developed in 1987 by the VEB Elektro-Apparate-Werke Berlin-Treptow „Friedrich Ebert“ (EAW) in the German Democratic Republic (DDR, East Germany). It consisted of an 8-bit and a 16-bit microprocessor and a W ...
, a microcomputer system developed in 1987 by the VEB Elektro-Apparate-Werke Berlin-Treptow „Friedrich Ebert“ (EAW) in the German Democratic Republic (DDR, East Germany
East Germany, officially the German Democratic Republic (GDR; german: Deutsche Demokratische Republik, , DDR, ), was a country that existed from its creation on 7 October 1949 until its dissolution on 3 October 1990. In these years the state ...
).P8000
/ref>
See also
* Federico Faggin
References
External links
Zilog website
Les Bird's MCZ utilities and RIO OS disk images
Discontinued operating systems
Disk operating systems
Microcomputer software
Proprietary operating systems
Z80
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