I guess, this is CPM based ( Do not ask me about CPM) Z-80 based computer made by Zinith Data Systems. I have one like this. Still running it. It is kind of getting flaky. I just want to find another one. tks Anil Joe wrote:

Tony , Thanks for the advice. I got mine running. There is a switch on the bottom of the screen that sits with 110/220 setting called normal/low. (what is it anyway??) I guess that had a contact problem. And I am still looking for one. If you ...... And I do have few question too. 1. If monitor does not get fired up, computer wont't start up right? I mean it reads floppy for about three seconds and lose the state and sits idle. One I have is connected to a automatic calibrator. If every thing goes right calibration head moves back and forth and get the distance. If monitor does not get power, it does not do any calibration. 2. On the terminal there are two dip switches. one to set up like cr with line feed and so on. One setting there is ZDS and ANSI. Do you know what ZDS ( must be Zenith Data Syatems) maps to. Their own keyboard mapping scheme, Communication or .... tks again. Anil Tony Duell wrote:

Z90, z89, z88 are version of the same system based on the H19 terminal and a Z80 board to run HDOS or CPM. The differences were IO and disk systems. The Z100 was 8088/z80(or was it 8085) and had a S100 bus section, very different machine. Allison

Upon the date 10:10 AM 10/15/99 -0400, allisonp(a)world.std.com said something like: 8085. The machine ran CP/M-85 on the 8085 side and MSDOS on the 8088 side. Regards, Chris -- -- Christian Fandt, Electronic/Electrical Historian Jamestown, NY USA cfandt(a)netsync.net Member of Antique Wireless Association URL: http://www.antiquewireless.org/

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