Good Condition
Published by on 5.25in Floppy Disk in 1987.
For Apple II systems running ProDOS.
Tested and working on the following operating systems:
1987
The Time Master H.O. clock card from Applied Engineering was possibly the most advanced system clock ever designed for any Apple II. The card utilized an onboard Z80 CPU and was capable of emulating all other system clocks which preceded it.