TR-DOS

TR-DOS is a disk operating system for the ZX Spectrum with Beta Disc and Beta 128 disc interfaces. TR-DOS and Beta disc were developed by Technology Research Ltd (UK), in 1984.[1][2]

TR-DOS
DeveloperTechnology Research Ltd
Initial release1984 (1984)
Latest release5.03 / 1986 (1986)
Available inEnglish
PlatformsZX Spectrum
Licenseproprietary

It became a standard, and most disk releases for the ZX Spectrum, especially of modern programs are made for TR-DOS as opposed to other disk systems.[3][4] Current emulators support TR-DOS disk images in the formats .TRD or .SCL. A clone of this interface is also used in the Russian Pentagon and Scorpion machines.

The latest official firmware version is 5.03 (1986).[5] Unofficial versions with various enhancements and bug-fixes have been released since 1990, with the latest being 6.10E (2006).[6]

TR-DOS handles SS/DS, SD/DD floppy disks. All modern versions support RAM Disk and some versions support hard disks.

Commands

The following list of commands is supported by TR-DOS V4.[7]

Utility programs include:

  • FILER
  • TAPECOPY (replaces BACKUP, COPY and SCOPY utility programs in TR-DOS V3)

See also

References
  1. "Beta Disk Interface - World of Spectrum". Worldofspectrum.org. Retrieved 9 December 2018.
  2. Woodcock, Colin. The ZX Spectrum on Your PC. Lulu.com. ISBN 9781471696121. Retrieved 9 December 2018 – via Google Books.
  3. "Archived copy". Archived from the original on 2016-10-10. Retrieved 2016-08-19.{{cite web}}: CS1 maint: archived copy as title (link)
  4. "Virtual TR-DOS". Vtrd.in. Retrieved 9 December 2018.
  5. "Archived copy". Archived from the original on 2016-09-23. Retrieved 2016-08-19.{{cite web}}: CS1 maint: archived copy as title (link)
  6. "Archived copy". Archived from the original on 2016-09-18. Retrieved 2016-08-19.{{cite web}}: CS1 maint: archived copy as title (link)
  7. "Technology Research Beta Disk Interface – TR-DOS V4" (PDF). www.sinclair.hu.
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