On Aug 10, 8:32, Dan Wright wrote:
> Kent Borg said:
> > On Fri, Aug 10, 2001 at 08:34:24AM +0000, Pete Turnbull wrote:
> > > ^ as a pipe still works in 'sh' (Bourne shell) but not in 'ksh' (Korn
> > > shell). I don't know about 'bash'.
> >
> > Cool! ...but it doesn't work for me on a Red Hat 7.0 machine:
>
> That's 'cause linux systems (well, most; I know redhat does for sure) use
> "bash" as "sh".
>
> However, it doesn't work on IRIX 6.5.10 either... though it DOES work on
> solaris 8. huh...
>From IRIX 6.5, 'sh' is actually 'ksh' so it's not Bourne shell either.
--
Pete Peter Turnbull
Network Manager
University of York
Eric Dittman wrote:
> I rarely ever use anything other than ^S/^Q, except on a VTxxx terminal,
> where I will in the odd instance use the "Hold Screen" key. I'll also
> often use ^[ for ESC.
^[ doesn't work on Televideo terminals. Some bright soul writing the
firmware seems to have decided that, since the terminal has a perfectly
good ESCape key, no one would _ever_ want to use ^[. When you hit
^[ on a Televideo, you get ^] ([ and ] are on the same key; you should have
had to hit SHIFT to get ^]). This was really annoying to me
when I was moving between keyboards a lot and picked up the habit of
hitting ^[ in vi because I couldn't depend on the location of the ESCape
key (or even it's existence; I used a lot of VT220s and other DEC systems
which used the LK201 keyboard).
Roger Ivie
ivie(a)cc.usu.edu
On Aug 9, 18:33, Sean 'Captain Napalm' Conner wrote:
> The ^ was used on early shells as an alternative to the | character (and
> this works under Xenix on the Tandy-6000). I don't think it's supported
> anymore (much like @ to erase a line is no longer used).
^ as a pipe still works in 'sh' (Bourne shell) but not in 'ksh' (Korn
shell). I don't know about 'bash'.
@ to erase a line is a different issue; that's a function of stty (the norm
these days is ctrl-U), like DEL vs ctrl-C.
--
Pete Peter Turnbull
Network Manager
University of York
This is likely off-topic - I have no idea how old the DEC 3000 is - but
I'm hoping it will fall cool hardware exception.
I think its either a model 600 or 700. At any rate, its very large and
is a tower design. I have not yet used the system and am trying to get
it to boot. I do not have a keyboard, mouse, or monitor for it, so I
need to connect via terminal, but am having som trouble.
For a terminal, I am using an Apple Powerbook G4 with ZTerm set to 9600,
8, n, 1. I'm using a Keyspan USB-Serial adapter and a null modem
adapter. I've connected my "terminal" to the 25 pin printer serial port
on the DEC 3000. I power up the DEC, it does its whirling and spinning
up, but I never get anything at all on my terminal. I've tried booting
with the S3 switch (whicdh I understand is supposed to change from kb/
mouse/monitor to console mode) in both directions, but to no avail.
The LED on the front reads "FD". It's possible that the RAM I have
installed (which I got from another DEC 3000) is not appropriate for the
system.
Any suggestions on what I need to do to get this to work are very much
appreciated. This is completely out of my area of expertise and I hate
to keep power cycling the DEC while I experiment.
Thanks!
Tom
Applefritter
www.applefritter.com
would be this bunch... where did the convention of using "^x" to
represent "Ctrl-x" come from? I wonder because you see that
convention everywhere, but
I don't know where it started but when I was in school, a while ago now,
we had a teletype and a dial up to the local university to, I think, a
PDP11.
Anyway backspace was always echoed as ^h and break as ^c. I don't recall
ever seeing any other control codes printed and some weren't. Control G
would ring the bell, a real one - not a bleep, for instance.
Lee.
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I saw an "offer to sell" on the wall at UW-Madison Surplus
that's selling a VAX 8700. See:
http://www.compaq.com/alphaserver/vax/archive/vax8700.htmlhttp://www.bussvc.wisc.edu/swap/ots023759.html
It says "VAX 8700 Computer, Approx 9' 8" X 5' 1" X 2' 6" .
Model H9652-EA, H9CAB-BA, 87XBA-XA Single. Manufacturer's
Serial Number's, ASQ1064, CX70905010, NI70600771. This computer
takes up an entire room, but is disassemblable. NOT ON WHEELS
High bid gets it on August 15. See wisc.edu link above;
I'm not selling it.
- John
> > A local computer scrapper has invited me out to look at some stuff
> > he's got before he strips it and ships it out this weekend. He
> > described it as a "rack full of PDP/84's with tape backups". He
> > thinks there are three systems in the rack, and he mentioned that it
> > was used for some sort of telephone switching system. Does anybody
> > have any interest in saving this stuff?
> >
> > Bill Richman
> > bill_r(a)inetnebr.com
> > http://incolor.inetnebr.com/bill_r
> >
> > Home of Fun with Molten Metal, technological
> > oddities, and the original COSMAC Elf
> > computer simulator!
> >
>
> Hell... yes. Where's the stuff out?
If it's local to the poster, Nebraska...
-dq
Hello folks ..
apologies for the 'sporadic' inquiry - I pulled the
text below ## off a search ...
crystal set / OC71 amp .....
Have searched FAR WIDE and ENDLESSLY for this circuit
(and the book containing it which I borrowed from a
library, ca. 1968) and dutifully returned.
If you have any pointers these would be most
gratefully received !!
I have located a *similar* circuit at
http://home.t-online.de/home/gollum/dt.htm
mine had one output transformer, 2 OC71s (well, lots
were burned in the process) and was constructed on a
terminal block .... ah ! the nostalgia !
I shall attempt to mail this message also into
discussion group
cheers
Glenn,
GM0KMA
Scotland
###########
Subject: radio kits
From: Adrian Graham (agraham(a)ccat.co.uk)
Date: 12/13/00-05:35:01 AM Z
> Date: Mon, 11 Dec 2000 18:39:07 +0000 (GMT)
> From: ard(a)p850ug1.demon.co.uk (Tony Duell)
> Subject: Re: Fw: Professors worry that engineering
students
> don't tinker
>
> involved). You started out making a crystal set,
then added a single
> audio stage (OC71), then a second stage (another
OC71), then added a
> loudspeaker (using an LT700 output transformer). And
finally
> you replaced
> the crystal detector with the OC45 regenerative
stage.
>
> I think the book is still around, even if the
transistors are hard to
> find now. I remember the son of a technician at a
place I was
> working a
> few years back was building one -- I managed to find
him some OC71s.
>
> I thought just about all UK hobbyists built this at
one time
> or another...
Nope - I had (and still have) my Radio Shack crystal
radio kit to tinker
with, followed by one of the Science Fair electronics
kits where you had
loads of spring terminals and small jumper wires to
build circuits
with......I found it the other day and it was dated
1973 :)
____________________________________________________________
Do You Yahoo!?
Get your free @yahoo.co.uk address at http://mail.yahoo.co.uk
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As I sit here at work, watching a program I have written consume memory at
the rate of 100k/sec, it strikes me that a mere 15 years ago, I was
writing programs which fit into just 16k of RAM *including* variable
space...
How times change...
I guess I was lucky (?) to miss the really early days when a few hundred
bytes were all that was available...
Ah, nostalgia!
--
Cheers,
Ade.
> > On Thu, Aug 09, 2001 at 08:13:20PM -0600, Mark Green wrote:
> > > The CDC Cyber series had many different character sets, which was a
> > > major pain in the ass for anyone maintaining software for them. I
> > > spent several years working on the Pascal compiler for the CDC
> > > machines (the orignal implementation from ETH).
> >
> > Ah, back at the U of Minn, we used CDC mainframes for our programming
> > classes. I tried using as much lower case as the Pascal books did,
> > and that did not make things happy.
>
> If I remember correctly the compiler was never modified to
> handle lower case letters, but I think the run-time support
> could handle them. I worked on the run-time part of the
> system, and I recall dealing with the various characters sets.
> I also put in the ability to call PPU programs from Pacal
> programs. This could also be done directly in Pascal, but
> required a fair amount of knowldege and several compiler
> cheats, so it wasn't recommended (which is why I did it that
> way most of the time). The CDC machines were the first ones
> that I used that had real parallelism, learned a hell of a
> lot the hard way!
I was granted access to the source for the CDC BASIC 2.1 compiler,
and added ASC() and CHR() to it. I specifically coded it to handle
both types of ASCII support that CDC provided- the 76 octal prefix
version in which characters that mapped to display code equivalents
were 6 bits, and those that didn't map to D.C. got six bits in the
form of the 76 prefix and then another six bits specifying the character.
The TELEX timesharing subsystem also provided another mode, that was
straight ASCII, albeit 8 bits right-justified in a 12-bit byte. You'd
prefix a block of data with 4000 octal and then a stream of this type
of ASCII; if anything interrupted the stream while being output, TELEX
would not realize it was ASCII and would just puke out display code
until it saw another 4000 code.
All this work was to support a cursor-addressed Star Trek game that
needed to run on at least a dozen different terminal types.
Regards,
-dq
