Documentation: Acorn Project Codenames
Looking around the source you’ll find numerous references to Acorn’s internal project codenames. Some are given here, with approximate release dates (or development dates if they were never released). Those in need of confirmation are marked with question marks.
| Hawk | System One | 1979 |
| Atom | (self referential) | 1980 |
| Proton | BBC Microcomputer | 1981 |
| Project A | ARM | 1983-87 |
| Neutron | 16032 based BBC machine-like microcomputer | |
| Electron | (self referential) | 1984 |
| Aberdeen | Electron’s ULA | 1984 |
| Project B | BBC Master | 1986 |
| Autumn | ARM1 | 1986 |
| Brazil | ARM1 coprocessor OS | 1986 |
| Squirrel | Intel i860 workstation | |
| Anna | MEMC1 | 1987 |
| Arabella | VIDC1 | 1987 |
| Albion | IOC | 1987 |
| CONTROL RISC | 1988 name for spinning off ARM | 1988 |
| Spider | FPA11 | |
| Avon | A3000 | 1989 |
| Fox | A540 | 1990 |
| Eros | RISC OS (aka Arthur 2) | 1988 |
| Amber | RISC OS 3.00 | 1991 |
| Brisbane | A5000 | 1991 |
| Green | RISC OS 3.10 | 1992 |
| Mexico | ? | ? |
| Perth | A4 | 1992 |
| Adelaide | A3010 with mezzanine board | 1992 |
| Heron ‘C’ | A3010 with ARM250 | 1992 |
| Heron ‘E’ | A3020 | 1992 |
| Roadrunner | A4000 | 1992 |
| Blue | RISC OS 3.5 | 1992 |
| Darwin, Victoria, Omega1 | RISC PC project code names prior to Medusa | 1994 |
| Medusa | Risc PC | 1994 |
| Aquarius | C/C++ programming environment | 1995 |
| Black | RISC OS 3.60 | 1995-6 |
| Kryten | A7000 | 1995 |
| Stork | A7000-based laptop | 1995 |
| Phileas | The first generation of the Acorn web browser, Bookworm | 1995 |
| Phoenix | The second generation of the Acorn web browser, Browse | 1996-8 |
| Falcon | First-generation STB hardware by Online Media | 1996? |
| Omega1 | First-generation NC hardware by ANC division | 1996-7? |
| Spinner | First-generation NC software by ANC division | 1996-7? |
| Peregrine | Second-generation STB hardware by Online Media | 1997? |
| Morris | A7000+, RISC OS 3.71 | 1997 |
| Expresso | 233MHz StrongARM Risc PC with RISC OS 3.71 and Java 1.02 | 1997 |
| Phoebe | Risc PC Mk II | 1997-8 |
| Skynet | Multi-tasking Acorn Replay, multiple codecs for it etc | 1996 |
| Ursula | RISC OS 4.00 (crippled developer release retroversioned as 3.8, see branch Ursula_RiscPC) | 1997-8 |
| Rachel | StrongARM processor card for Phoebe | 1997-8 |
| Chandler | IOMD2 for Phoebe | 1997-8 |
| Monica | PCI bridge for Phoebe | 1997-8 |
| Gold | RISC OS on microkernel | |
| Galileo | The next generation operating system that never was | 1997-9 |
| Buxton | SA1501 | 1996 |
| Impala | DSL startup | |
| ALARM | the processor that became Firepath | |
| Buffy | RISC OS 4.02 (RISCOS Ltd project name) | 1999 |
| Lazarus | Internet TV | 1999-2000 |
| Bethany | Multilingual Internet TV | 2001 |
| Tungsten | Iyonix PC (Tematic project name) | 2002 |
| Customer | Generic phrase replacing confidential names that cannot be released to the public | Any |
1 Not to be confused with the Microdigital Omega, a Phoebe replacement.
Mostly based on Matthew Hambley’s page and Usenet threads [1 , 2 ] with additions.
