Software archaeology for Acorn Computer artefacts. https://acornaeology.uk/ 2026-04-01T13:22:19Z https://acornaeology.uk/acorn-nfs/3.34.html 2026-03-31T18:50:01+02:00

NFS (Network Filing System) and ANFS (Advanced Network Filing System) are Econet filing system clients for the BBC Micro, providing remote file access over Acorn's Econet local area network. They handle the full Econet protocol stack — four-way handshake, NMI-driven frame transmission and reception — and plug into the MOS filing system framework to transparently redirect file operations to a network fileserver. Both ROMs also contain Tube host code for managing second-processor communication, which is largely unrelated to the filing system functionality. NFS (versions 3.34–3.65) is an 8 KB ROM; ANFS (4.x) is its 16 KB successor, with an expanded star command set and improved error reporting.

https://acornaeology.uk/acorn-nfs/3.34B.html 2026-03-31T18:50:01+02:00

NFS (Network Filing System) and ANFS (Advanced Network Filing System) are Econet filing system clients for the BBC Micro, providing remote file access over Acorn's Econet local area network. They handle the full Econet protocol stack — four-way handshake, NMI-driven frame transmission and reception — and plug into the MOS filing system framework to transparently redirect file operations to a network fileserver. Both ROMs also contain Tube host code for managing second-processor communication, which is largely unrelated to the filing system functionality. NFS (versions 3.34–3.65) is an 8 KB ROM; ANFS (4.x) is its 16 KB successor, with an expanded star command set and improved error reporting.

https://acornaeology.uk/acorn-nfs/3.35D.html 2026-03-31T18:50:01+02:00

NFS (Network Filing System) and ANFS (Advanced Network Filing System) are Econet filing system clients for the BBC Micro, providing remote file access over Acorn's Econet local area network. They handle the full Econet protocol stack — four-way handshake, NMI-driven frame transmission and reception — and plug into the MOS filing system framework to transparently redirect file operations to a network fileserver. Both ROMs also contain Tube host code for managing second-processor communication, which is largely unrelated to the filing system functionality. NFS (versions 3.34–3.65) is an 8 KB ROM; ANFS (4.x) is its 16 KB successor, with an expanded star command set and improved error reporting.

https://acornaeology.uk/acorn-nfs/3.35K.html 2026-03-31T18:50:01+02:00

NFS (Network Filing System) and ANFS (Advanced Network Filing System) are Econet filing system clients for the BBC Micro, providing remote file access over Acorn's Econet local area network. They handle the full Econet protocol stack — four-way handshake, NMI-driven frame transmission and reception — and plug into the MOS filing system framework to transparently redirect file operations to a network fileserver. Both ROMs also contain Tube host code for managing second-processor communication, which is largely unrelated to the filing system functionality. NFS (versions 3.34–3.65) is an 8 KB ROM; ANFS (4.x) is its 16 KB successor, with an expanded star command set and improved error reporting.

https://acornaeology.uk/acorn-nfs/3.40.html 2026-03-31T18:50:01+02:00

NFS (Network Filing System) and ANFS (Advanced Network Filing System) are Econet filing system clients for the BBC Micro, providing remote file access over Acorn's Econet local area network. They handle the full Econet protocol stack — four-way handshake, NMI-driven frame transmission and reception — and plug into the MOS filing system framework to transparently redirect file operations to a network fileserver. Both ROMs also contain Tube host code for managing second-processor communication, which is largely unrelated to the filing system functionality. NFS (versions 3.34–3.65) is an 8 KB ROM; ANFS (4.x) is its 16 KB successor, with an expanded star command set and improved error reporting.

https://acornaeology.uk/acorn-nfs/3.60.html 2026-03-31T18:50:01+02:00

NFS (Network Filing System) and ANFS (Advanced Network Filing System) are Econet filing system clients for the BBC Micro, providing remote file access over Acorn's Econet local area network. They handle the full Econet protocol stack — four-way handshake, NMI-driven frame transmission and reception — and plug into the MOS filing system framework to transparently redirect file operations to a network fileserver. Both ROMs also contain Tube host code for managing second-processor communication, which is largely unrelated to the filing system functionality. NFS (versions 3.34–3.65) is an 8 KB ROM; ANFS (4.x) is its 16 KB successor, with an expanded star command set and improved error reporting.

https://acornaeology.uk/acorn-nfs/3.62.html 2026-03-31T18:50:01+02:00

NFS (Network Filing System) and ANFS (Advanced Network Filing System) are Econet filing system clients for the BBC Micro, providing remote file access over Acorn's Econet local area network. They handle the full Econet protocol stack — four-way handshake, NMI-driven frame transmission and reception — and plug into the MOS filing system framework to transparently redirect file operations to a network fileserver. Both ROMs also contain Tube host code for managing second-processor communication, which is largely unrelated to the filing system functionality. NFS (versions 3.34–3.65) is an 8 KB ROM; ANFS (4.x) is its 16 KB successor, with an expanded star command set and improved error reporting.

https://acornaeology.uk/acorn-nfs/3.65.html 2026-03-31T18:50:01+02:00

NFS (Network Filing System) and ANFS (Advanced Network Filing System) are Econet filing system clients for the BBC Micro, providing remote file access over Acorn's Econet local area network. They handle the full Econet protocol stack — four-way handshake, NMI-driven frame transmission and reception — and plug into the MOS filing system framework to transparently redirect file operations to a network fileserver. Both ROMs also contain Tube host code for managing second-processor communication, which is largely unrelated to the filing system functionality. NFS (versions 3.34–3.65) is an 8 KB ROM; ANFS (4.x) is its 16 KB successor, with an expanded star command set and improved error reporting.

https://acornaeology.uk/acorn-nfs/4.08.53.html 2026-03-31T18:50:01+02:00

NFS (Network Filing System) and ANFS (Advanced Network Filing System) are Econet filing system clients for the BBC Micro, providing remote file access over Acorn's Econet local area network. They handle the full Econet protocol stack — four-way handshake, NMI-driven frame transmission and reception — and plug into the MOS filing system framework to transparently redirect file operations to a network fileserver. Both ROMs also contain Tube host code for managing second-processor communication, which is largely unrelated to the filing system functionality. NFS (versions 3.34–3.65) is an 8 KB ROM; ANFS (4.x) is its 16 KB successor, with an expanded star command set and improved error reporting.

https://acornaeology.uk/acorn-nfs/4.18.html 2026-03-31T18:50:01+02:00

NFS (Network Filing System) and ANFS (Advanced Network Filing System) are Econet filing system clients for the BBC Micro, providing remote file access over Acorn's Econet local area network. They handle the full Econet protocol stack — four-way handshake, NMI-driven frame transmission and reception — and plug into the MOS filing system framework to transparently redirect file operations to a network fileserver. Both ROMs also contain Tube host code for managing second-processor communication, which is largely unrelated to the filing system functionality. NFS (versions 3.34–3.65) is an 8 KB ROM; ANFS (4.x) is its 16 KB successor, with an expanded star command set and improved error reporting.

https://acornaeology.uk/acorn-6502-tube-client/1.10.html 2026-03-31T18:30:28+02:00

The Tube Client ROM for the 65C02/65C102 second processors used with the BBC Micro. Two variants of v1.10 were produced: One for the external 3 MHz "cheese-wedge" second processor, and another for the internal 4 MHz board for the Master Turbo. The Tube Client serves as the operating system for the second processor, providing the standard BBC Micro MOS API by forwarding calls over the Tube interface to the host machine. The entire OS fits in just 2 kB, stored in the upper half of a 4 kB ROM device.

https://acornaeology.uk/acorn-adfs/1.30.html 2026-04-01T15:21:16+02:00

ADFS (Advanced Disc Filing System) is a floppy disc and SCSI hard disc filing system for the BBC Micro. It supports hierarchical directories, random access files, and the Acorn free space map format. ADFS plugs into the MOS filing system framework, providing implementations of OSFILE, OSFIND, OSGBPB, OSBGET, OSBPUT, and OSARGS. It also handles disc formatting, defect mapping, and file compaction. The ROM contains both the floppy disc driver (using the WD1770 controller) and the SCSI hard disc driver.