RISC OS
Closed source; open source for some versions since 2018
Current
Acorn personal computers
Acorn Computers Open-source * Castle Technology * RISC OS Open Proprietary * RISCOS Ltd
RISCOS
RISC OS Open
Flash ROM, OTP ROM, or loadable ROM image
RISC OS.png
English
RISC OS 5.30 screenshot.jpg
Apache License 2.0
Proprietary
käyttöjärjestelmä
Betriebssystem
sistema operativo
computerbesturingssysteem
système d'exploitation
प्रचालन तन्त्र
ਆਪਰੇਟਿੰਗ ਸਿਸਟਮ
operativsystem
sistema operatiu
電腦作業系統
Betribssystem
sistem de operare
operačný systém
ഓപ്പറേറ്റിങ്‌ സിസ്റ്റം
system operacyjny
operační systém
styresystem
computer operating system
A screenshot of RISC OS 5.30 running on a Raspberry Pi
PackMan, RiscPkg