> From: Al Kossow
>> the machine had to be configured (via connecting up computing units
>> with cables)
> In 1947 ENIAC was modifed at BRL to be a stored program computer.
Well, I did say "in the original ENIAC usage" it had to be configured by
plugging! I was aware of the later
> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Noel
> Chiappa
> Sent: 16 September 2015 22:06
> To: cctalk@classiccmp.org
> Cc: j...@mercury.lcs.mit.edu
> Subject: Re: ENIAC programming Was: release dates of early microcompute
> From: Dave Wade
> Crispin Rope concentrates on the power of ENIAC and its usefulness
Which is why you should look at the longer, later article:
http://eniacinaction.com/wp-content/uploads/2014/02/EngineeringTheMiracleoftheENIAC-scanned.pdf
in particular the part I pointed out (bott
> From: Dave Wade
> to me a "computer" without self-modifying code is a programmable
> calculator even if it has index registers...
Most modern computer languages run with the executable
instructions in a "pure code" section, which is set to be
NOT writeable by the prog
> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Noel
> Chiappa
> Sent: 17 September 2015 13:39
> To: cctalk@classiccmp.org
> Cc: j...@mercury.lcs.mit.edu
> Subject: Re: ENIAC programming Was: release dates of early microcompute
> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Jon Elson
> Sent: 17 September 2015 17:44
> To: gene...@classiccmp.org; discuss...@classiccmp.org:On-Topic and Off-
> Topic Posts
> Subject: Re: ENIAC programming Was: rele
> Crispin Rope concentrates on the power of ENIAC and its usefulness, neither
> of which can be argued with, but to me a "computer" without self-modifying
> code is a programmable calculator even if it has index registers...
As a total thread-drift, I have in my hand a machine that anyone would c
On 09/17/2015 10:51 AM, tony duell wrote:
As a total thread-drift, I have in my hand a machine that anyone
would class as a a programmable calculator. It looks like a
calcualtor, it has key-per-function operation (that is, a 'SIN' key,
etc). And yet...
Back in the day, a friend who worked for
> From Dave
> AMD29K isn't "Modern"
Well, compared to the ENIAC it is! :-)
To be serious, the 29K is fully what we now think of as a 'computer'; that's
all I meant by saying it's "modern".
> If you have to use another external mechanism to arbitrarily change the
> program, then
On Wed, Sep 16, 2015 at 4:18 PM, Dave G4UGM wrote:
> It is notable that in order to solve all problems, a computer must permit
> self modifying code.
>From a theory of computation view, I don't believe that's true. Any
computable function can be computed by a fixed program.
For a particular com
> From: space...@gmail.com
>
> On Wed, Sep 16, 2015 at 4:18 PM, Dave G4UGM wrote:
> > It is notable that in order to solve all problems, a computer must permit
> > self modifying code.
>
> From a theory of computation view, I don't believe that's true. Any
> computable function can be compute
> On Sep 17, 2015, at 5:44 PM, dwight wrote:
>
>
>
>> From: space...@gmail.com
>>
>> On Wed, Sep 16, 2015 at 4:18 PM, Dave G4UGM wrote:
>>> It is notable that in order to solve all problems, a computer must permit
>>> self modifying code.
>>
>> From a theory of computation view, I don't bel
On 2015-09-17 12:44 PM, Jon Elson wrote:
> From: Dave Wade
> to me a "computer" without self-modifying code is a programmable
> calculator even if it has index registers...
Most modern computer languages run with the executable instructions in a
"pure code" section, which is
> Date: Thu, 17 Sep 2015 13:29:34 -0400
> From: t...@telegraphics.com.au
> To: gene...@classiccmp.org; classiccmp.org:On-Topic and Off-Topic Posts
> cctalk@classiccmp.org; gene...@classiccmp.org
> Subject: Immutability - was Re: ENIAC programming Was: release dates of early
On Thu, 17 Sep 2015, dwight wrote:
If working on a newer X86 processor, this is necessary, not to protect the
code but because the code is cashed and my not be updated in time for
it to be executed.
Write through is expensive and only provided on the data side, if at all.
Dwight
On some/most ol
ty - was Re: ENIAC programming Was: release dates of
> early microcomputer operating systems, incl. Intel ISIS
>
> On 2015-09-17 12:44 PM, Jon Elson wrote:
> >
> >> > From: Dave Wade
> >>
> >>
> >> > to me a "computer" with
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