5 disks full the programs I use when testing, repairing and diagnosing faults on the TRS-80 Model 4, 4P and 4D.
Also includes a LS-DOS 6.3.1K, which is the most recent version of the Model 4 DOS.
Programs includes: File copying, disk drive diagnostics and timing, disk zapping, memory tests (64K-128K), disk backup, editor/assembler, terminal program, Double Duty
NOTES:
1. The disk set will look slightly different to the picture but have the same contents.
2. If you have a favourite utility from back in the day you may request a copy in place of one of the disks.
3. Your Model 4, 4P or 4D has to mostly work (ie. at least try to boot a floppy disk). No basket-case computers which only start to a screen full of random characters will boot these disks. Your computer has to mostly work...
System requirements: a 64K Model 4, 4D or 4P with one working disk drive.
Worldwide shipping is $13.50