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From: shmuel@os2bbs.com
Subject: Re: Exception Handling
Date: 1996/10/09
Message-ID: <53f0vh$ar2@news1.mnsinc.com>#1/1
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distribution: inet
references: <323750EA.167E@maths.usyd.edu.au>
 <51jtet$16qc@watnews1.watson.ibm.com> <525m1s$jvh@goanna.cs.rmit.edu.au>
 <3247E388.243A@ix.netcom.com> <32529a13.6465307@nntp.netgate.net>
organization: Atid/2
reply-to: shmuel.metz@os2bbs.com
newsgroups: 
 comp.object,comp.lang.java.tech,comp.lang.c++,comp.lang.ada,comp.lang.asm370,comp.lang.pl1
Date: 1996-10-09T00:00:00+00:00
List-Id: <comp.lang.ada>


In <32529a13.6465307@nntp.netgate.net>, Fritz@Peacham.com (Fritz Schneider) writes:
>Bob Halpern <wumpus@ix.netcom.com> wrote:
>
>The IBM 709 (a vacuum tube machine) introduced the concept of data
>channels (now called DMA) in a commercial product ca. 1957. 

Sorry, but the data-channel trap feature of the 709 was not the first either. 
The earliest reference that I've seen to interrupts was on the 1103A, but I 
wouldn't put any money on it being first.