-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hi,


Am 15.11.2003 um 03:19 schrieb Rob Withers:

> Alan, these posts are always so stimulating.  Could
> you tell me a little about abstact algebras and how
> you relate them to computers sending messages to other
> computers?  Is it related to defining languages, in
> some way?
>

I would say the same :-))


> you also wrote:
>
>> An interesting consequence of this structure was
>> that protection was
>> complete in ST-72, and all messages could be
>> serialized if the object
>> wanted (we did not bother with this because we were
>> working on
>> different kinds of problems -- but Hewitt thought
>> about it a lot).
>
> Could you say a little more about why protection was
> ensured?  Also, I like the implications of serializing
> all msgs.  How did this work in these systems?
>
> thanks!
> journeyman rob

thanks from me, too !

greetings

Hans
>
>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.3 (Darwin)

iD8DBQE/teyKX8NXna8434cRAlLlAKDGUnwC2cYpAAtlzyRg9HiMIna/VgCg/Mvj
sCmK82vmb8uw6sjUpgI6HB4=
=68Hf
-----END PGP SIGNATURE-----