TPDD client:Disk Power

Disk Power and Disk Power II by Hugu Ferreyra / Ultrasoft Innovations

Disk Power was available for multiple machines. Versions for at least TRS-80 Model 100/102, 200 and Kyotronic KC-85 are known. Versions for NEC PC-8201a and Olivetti M10 are likely but unknown.

Few/no copies are available today as it was made to be impossible for the user to copy. All that is available are various references and mentions in past forum posts and ads in magazines.

There are many references throughout the M100SIG Archive.

Both the distribution disk and the cassette were required to install the software. There is no way to prevent copying a cassette, but the distribution disk was impossible to copy using any of the software available at the time. This includes the full-disk backup utility on the original tandy TPDD utility disk, and DiskPower itself provides no similar backup utility, and simply using DiskPower or any other TPDD client like TEENY or TS-DOS to copy the file from one disk to another does not work. So, to re-install the software after a software crash or full power loss or a cold reset, the user needed either the original or a copy of the cassette, and the actual original distribution disk. There was no way to make a backup of it.

Today there is a tpdd utility that can read & write TPDD1 and TPDD2 disks more completely than what was previously available, and has been used to create reproducible copy of Disk Power for KC-85 so far.

TPDD client:DiskPower:KC-85 TPDD client:Disk-Power:KC-85 TPDD client:Disk Power:KC-85