Archived posting to the Leica Users Group, 2013/02/15

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Subject: [Leica] The History of the Personal Computer
From: red735i at verizon.net (Frank Filippone)
Date: Fri, 15 Feb 2013 07:39:58 -0800
References: <F6A063A0-9A6E-42B6-B562-2C90ECFD8196@acm.org> <1360941460.62556.YahooMailNeo@web125001.mail.ne1.yahoo.com>
 
The Z-80 processor was used in several early computers, some for PC use,
others for industrial control use.  It was, by far, the most common OS for
special purpose industrial control computers.

If I remember correctly, Radio Shack used an operating system made by
Digital Research.....  CP/M, but customized it to their way of thinking.

The OS was considered much more robust than the Apple or early IBM.

Digital Research is best known for its refusal to write the OS for the IBM
PC....

And the rest is history......

As I write this, I am working on an original TRS-80 Desk.  Original with
modification: a new top.  My then boss wanted to get rid of it, so I
repurposed it....and it is still today more steady than anything I have ever
tried.  It will last another few decades......



Frank Filippone
Red735i at verizon.net
Replies: Reply from kanner at acm.org (Herbert Kanner) ([Leica] The History of the Personal Computer)
Reply from jhnichols at lighttube.net (Jim Nichols) ([Leica] The History of the Personal Computer)
 In reply to: Message from bill_clough at yahoo.com (Bill Clough) ([Leica] The History of the Personal Computer)