Software made by Zenith Data Systems

DOS / System

EN

Z-200 Diagnostics 1986

These are a set of diagnostic programs for Heath/Zenith Z-200 computers. These are bootable disks with a "Limited MS-DOS Version 2.01"

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DOS / Utility

EN

zenith Z-100 pc series diagnostics z-100

diagnostic disc to test floppy drives Winchester drives ports installed boards and lots more two files took some getting off the disc but seem to have copies ok 51 files lots of interest on this disc

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DOS / Utility

EN

Zenith ISA Configuration Utility 2.0

Zenith Z-400+ Series utility to set up Hard Drive parameters, floppy drive type and many settings that would be in a normal on-board BIOS. This utility is the only way you can set up a Z-400, especially if it has a dead CMOS battery. Replace the battery. Use WinRAR to unpack the .EXE file. Copy the file into a folder or directory and type 3344-1u.exe. The file will unpack itself in the directory. Copy the files to a floppy disk. Make the disk bootable or use a regular DOS boot disk first. Then, insert the Zenith Utility disk. From the files list, run CF.EXE. The Hard drive parameters should be automatically set by the program. Select your settings for your machine. The program will save the new config to the floppy and to nvram on the computer. Restart. It should boot with the drive now. Enjoy! Note: Confirmed to work on a ZU-425S 486 Desktop

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