Compo Software

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The only officially approved TOS 2.06 upgrade for the STE and STFM.


The STFM version (known as the T-Board) is soldered directly on top of 68000 chip. The board requires the user to run a software program to switch to the newer version of TOS.


The STE version plugs directly on top of 68000 chip and uses a hardware switch to flick between the old and new versions of TOS.

Magazine References

  • ST Format, issue 47, p33.
  • Atari ST Review, issue 6, p51-53.