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The OS was designed in the United Kingdom by Acorn for the 32-bit ARM based Acorn Archimedes, and released in its first version in 1987, as the Arthur operating system. The first public release of the OS was Arthur 1.20 in June 1987.
The first version of RISC OS was originally released in 1987 as Arthur 1.20. The next version, Arthur 2, became RISC OS 2 and was released in April 1989. RISC OS 3.00 was released with the A5000 in 1991, and contained many new features. By 1996, RISC OS had been shipped on over 500,000 systems. [15] An Acorn Archimedes A3020 computer running ...
The Acorn Archimedes is a family of personal computers designed by Acorn Computers of Cambridge, England.The systems in this family use Acorn's own ARM architecture processors and initially ran the Arthur operating system, with later models introducing RISC OS and, in a separate workstation range, RISC iX.
Arthur, renamed RISC OS ARX was an unreleased Mach-like operating system written in Modula-2+ [ 3 ] developed by Acorn Computers Ltd in the Acorn Research Centre (ARC) United Kingdom (UK) and later by Olivetti —which purchased Acorn—for Acorn's new Archimedes personal computers based on the ARM architecture reduced instruction set computer ...
OS/VS2 (Operating System/Virtual Storage 2, Virtual-memory version of OS/360 MVT) OS/VS2 R1 (Called Single Virtual Storage (SVS), Virtual-memory version of OS/360 MVT but without multiprocessing support) OS/VS2 R2 through R3.8 (called Multiple Virtual Storage, MVS, eliminated most need for VS1). MVS/SE (MVS System Extensions)
The OS was originally developed by Acorn Computers for use with their 1987 range of Archimedes personal computers using the Acorn RISC Machine (ARM) processors. It comprises a command-line interface and desktop environment with a windowing system. Originally branded as the Arthur 1.20 the subsequent Arthur 2 release was shipped under the name ...
Three different federal judges delivered legal setbacks and slap downs to President Donald Trump in the span of an hour and a half on Tuesday in a series of cases challenging controversial moves ...
RISC iX is a discontinued Unix operating system designed to run on a series of workstations based on the Acorn Archimedes microcomputer. [1] Heavily based on 4.3BSD, it was initially completed in 1988, a year after Arthur but before RISC OS. [2]