How many of you like HP41C calculators?

From: Ron Hudson <rhudson_at_cnonline.net>
Date: Tue Nov 18 21:16:02 2003

On Tuesday, November 18, 2003, at 03:49 PM, Tom Jennings wrote:

> On Mon, 2003-11-17 at 17:58, Joe wrote:
>
>>
>>> I am not sure if it's a calculator or computer :-).
>
>> I agree. It has all the requirements. User input output, device
>> I/O,
>> mass storage, programability, etc. And it's not limited to one
>> function per
>> key as most calculators.
>
> But is it STORED PROGRAM, eg. can it do self-modifying code. vonNeumann
> (one store for program and data; programs ARE data) or Harvard
> (instructions are in a separate store from data memory) architecture?

The HP41 is a harvard architechture normally, but with Synthetic
programming
the "curtain" can be moved and data becomes program.

>
> Strictly-speaking, Microchip's PICs are NOT COMPUTERS. Of course I
> don't
> make that distinction when working with them.
>
> "Programmability" isn't a measure of a 'stored program electronic
> automatic computer'. My washing machine is programmable... :-)
>
Received on Tue Nov 18 2003 - 21:16:02 GMT