perm filename HOTER.ANS[R,WD] blob
sn#138757 filedate 1975-01-02 generic text, type T, neo UTF8
Remarks on the Home Terminal Club Proposal
Overall, I am enthusiastic about the idea, but not overly
optimistic about the chances of success.
I find the dial-up communication costs to be prohibitive for
some of the things I want to do now. If I read the rates right, it
costs about a dollar an hour to call Stanford from Cupertino, and six
dollars an hour from Berkeley. An attempt to reduce this cost by
leasing lines, would be expensive in itself, and might lead to
substantial complexity like "TYMNET". Even the incomming phone
equipment is quite complex. There will be various kinds of terminals
dialing up at various data rates, plus leased lines comming in.
Point by Point Response
1(machine choice) There is a severe upward compatibility problem. If
we do this on a very small scale, we might start with Bruce's system
on the 11/05, and progress to an 11/45. If we want PDP-10's there is
no similar price performance spread, unless we start with a PDP-6 or
build our own.
2a(file storage) The file storage may give rise to a security
problem. There are certain "diary-like" things I hesitate to put on
the machine, and some people may feel the same about financial
things. There is certainly a considerable cost associated with
backup.
b(light computation) The amount of computation may be a problem.
Tymshare started with a fixed connect time charge and progressed to a
more detailed form of billing.
c(games) I believe that quite a few of the games require lots of
compute power or real time interaction. No doubt there are some
suitable ones, but I wonder if this will be a big thing.
d(news) This is a great idea if we can get the news services to go
along.
e(dial-out) Tymshare has not solved the problem of controlling and
billing this service. Dial out facilities exist on their machines,
but are not available to users.
f(messages) This may have legal problems. I believe that Tymshare is
currently obliged to "add value" to data sent over its net, and
cannot rent it for purely communication purposes.
g(reservations) This sounds like a good hack, but I doubt we can find
anyone who feels secure in letting us do it.
h(computer aided instruction) See appendix.
i(reading)
j(written discussion) See messages.
k(bullitin board and ads) It would be wonderful if we could partially
support ourselves by selling advertising. This is intreagueing.
...
z(else)
3(employees)
4(communication) See opening remarks.
5(terminals)
6(club's computer) Leaving the machine unattended demands a high
standard of reliability which might exclude such hacks as using a
PDP-6 or building our own. Actually, it might be worse than that.
Moving machinery like a disk drive could do itself a lot of damage if
no-one were around to turn it off when it failed.
7(programming) This sounds ok, but we will have the usual reliability
and maintenance problems with software. Quality standards would be
hard to impose on volunteers.
8(first steps) I am willing to help, but cannot currently promise to
join.
Remarks
There are various data bases I would like to have machine
access to which we might explore. These include: a good dictionary,
Books in print, various membership lists eg. AMS, library catalogs
(we could approach Spires-Ballots), phone books(I doubt this is
possible, unless we get good OCR equipment.
Terminals
I think that terminals can be divided into sevral rough
classes in a useful way.
At the bottom are the printing terminals. The Tymshare 30cps
silent, printing terminals are minimally acceptable. Faster hard
copy devices may come along. I find these more useful than a crude
screen without available hard copy.
The interesting class of things to explore are the terminals
of roughly Imlac capability. A little slow down to accomodate
dial-up might be ok. Storage should be sufficient to hold a full
screen. I think that continuous scrolling would be easier on the
eyes. Most important, the resident program could be changed under
control of the main program. There is no reason for it to be
constant.
In the direction of the Xerox herasy, there are home
facilities. I think this is a wonderful idea with limitations. I
don't think that any public storage can be kept in facilities which
are not bonded in some way. Among other problems, I believe that the
copyright situation with books is the correct one. Once you have
published, you cannot withdraw. This would not be enforceable with
home storage, and would lead to a lot of copying.
I don't think the home facility should have any
responsibilities to a net, but I think it is an inevitable end result
of terminal developement.
Suggestion
I think we would do well to consult both Tymshare and
Resourse 1 about some of these things. We might also watch to see
how the various home computer outfits: Baumgart, McGuire, Petit etc.
fare.
Appendix
I am interested in the "self documenting system". I think
that the question mark feature can be developed into a very useful
thing if it is made smart enough. The first step is to allow a
question mark in any position in a command and find all parses which
are admissible. For example:
? foo←bar/n/q
must be a copy not a rename because of the switches. The next step I
see is the recognition of synonyms. This, incidentally, is a fault I
find with Pub generated indexes. They include the right word, but
not similar wrong ones.