[Elecraft] Spilling the HF beans .....

[John [K7SVV]]

I can remember when I started writing in assembler for my IBMPC that came 
with PCDOS 1.0.  The calls to the operating system were exactly like CP/M. 
All you had to do was load a memory address (I forget which one) with a 
value that defined the type of system you call you were making and then 
execute a CALL to address 0004 and away you went.  PCDOS 2.0 change all of 
that.

John   [K7SVV]

----- Original Message ----- 
From: "Brian Lloyd" <brian-wb6rqn at lloyd.com>
To: "Fred (FL)" <ncsailors at yahoo.com>
Cc: <elecraft at mailman.qth.net>
Sent: Sunday, June 03, 2007 10:44 AM
Subject: Re: [Elecraft] Spilling the HF beans .....


>
> On Jun 3, 2007, at 4:54 AM, Fred (FL) wrote:
>
>> And Bill Gates empire was launched, and IBM got
>> its first DOS contract from Gates - and IBM's PC was
>> launched.
>
> The way I remember it, IBM decided they wanted a version of CP/M for 
> their new Intel 8086-based system and went to Digital Research.  Somehow 
> the folks at DR managed to really annoy the folks from IBM.  (I heard it 
> that Gary Kildall's wife wouldn't deal with them because  Gary was 
> out-of-town.) So IBM turned to the small company that was  supposed to 
> provide the BASIC interpreter for the new "PC": Microsoft.
>
> Bill Gates of Microsoft assured IBM that Microsoft had a replacement  for 
> CP/M-86 even though they really didn't. (Ah, vapor-ware has been  with us 
> for a LONG time.) Microsoft then quickly purchased the rights  to a CP/M 
> lookalike called QDOS. That became IBM's PC-DOS which  Microsoft then 
> renamed MS-DOS. The rest is history.
>
> 73 de Brian, WB6RQN
> Brian Lloyd - brian HYPHEN wb6rqn AT lloyd DOT com
>
>
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