On 2012-07-11 18:12, cctalk-request at classiccmp.org wrote:
> Message: 25
> Date: Wed, 11 Jul 2012 10:12:09 -0600
> From: Richard<legalize at xmission.com>
> To:cctalk at classiccmp.org
> Subject: TECO ^B on OS/8 and RT-11
> Message-ID:<E1SozWL-0003Wk-9R at shell.xmission.com>
>
> According to the documentation for TECO v40:
>
> ^B <CTRL/B> (caret/B) is equivalent to the current date
> via the following equations:
>
> OS/8: ^B = (((month*32)+day)*8)+((year-1970)&7)+k
> where k = 4096 if year>1977
> and k=0 otherwise
> RT-11: ^B = (((month*32)+day)*32)+year-1972
> RSTS/E: ^B = ((year-1970)*1000)+day within year
> RSX-11: ^B = ((year-1900)*16+month)*32+day
> VAX/VMS: ^B = ((year-1900)*16+month)*32+day
> TOPS-10: ^B = (((year-1964)*12+month-1)*31+day-1)
>
> Notice how the year is added as the least significant bits for OS/8
> and RT-11.
>
> For OS/8, you only get *3* bits for the year plus a high 4K bit set if
> the year is out of range? Does this mean years higher than 1977 are
> encoded as 4096+(year-1977)?
>
> For RT-11, notice how year-1972 is packed into *5* bits (0..31), so
> years after 1972+31=2003 start carrying over into the bits for the month
> and day.
>
> Can anyone with RT-11 or OS/8 and TECO v40 verify what is described above?
I don't have an OS/8 system up and running right now, but OS/8 itself
only keeps dates in that format. It has two additional bits stored at
another location, which tells how the year is to be interpreted. I would
suspect that TECO8 just sets the 13th bit if the two "century" bits in
OS/8 is non-zero.
So, years higher than 1977 are actually encoded as 4096+((year-1970) mod
8). Which, incidentally, is also exactly what the documentation you
quote is saying... :-)
Johnny
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt at softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
Hi,
Been lurking for a month or two, and have been enjoying the conversations.
I was curious if anybody had a Xerox 820 keyboard laying around that wasn't
needed. Or parts to one.
I have one that needs a switch replaced. Ideally, a right CTRL key would
be handy too, but I might be able to salvage mine.
The keyboard assembly is made by Maxi-Switch Co. with a PN of 630107-02.
I don't have a PN for the switches themselves, but they look like this:
https://dl.dropbox.com/u/489067/test/20120709_154136.jpg
Thanks in advance!
Garrett Meiers
Looks like Tnix has a normal PDP-11 a.out.
dd copied over ran OK and the stock dd.c from the V7 source distribution compiled
and ran.
Discovered more tools that are missing (like nm and strip)
This is interesting because the Tnix cross-development tools I've recovered
(and that others might have on floppy) should be able to be run under SIMH.
So if there are old development project sources floating around, they should
be rebuildable without a 856x
>
>I wasn't too thrilled with the image quality of a VT525 on an LCD panel the
>last time I tried it. Bad enough that I thought I should keep a CRT around
>to use with it. I'll have to try it again and take a look. I don't
>remember it being dim. More of a scaling artifact issue if I remember
>correctly. I
>
I don't have a VT525 but I did try a newish LCD panel on an Alphaserver 1000A
with a Trio S3 VGA graphics card.
The results were very poor with stationary vertical corrugations and difficult
to read text.
I found a tweakable control on the LCD setup menu - I can't remember what it
was called and can't check now - maybe it was "clock rate" or something like
that. Whatever it was, adjusting it made a great improvement to the display.
Regards,
Peter Coghlan.
live webcast to commemorate the 50th anniversary of Telstar
Webcasts
The National Air and Space Museum offers live webcasts of select public
programs. Please check the schedule below for programs that offer a live
webcast and visit this page to view the webcast.
(http://airandspace.si.edu/imagedetail.cfm?imageID=3587)
Next Webcast:
_Telstar 50th Anniversary_
(http://airandspace.si.edu/events/eventDetail.cfm?eventID=4057)
Thursday, July 12, 2012, 1:30 pm
Refresh this page near the start time of the next event to view the live
webcast.
View previously recorded events in the _Webcast Archive_
(http://airandspace.si.edu/events/lectures/webcast/archive.cfm) .
Upcoming Webcasts:
07/12/2012 - _Telstar 50th Anniversary_
(http://airandspace.si.edu/events/eventDetail.cfm?eventID=4057) - 1:30 pm
live webcast to commemorate the 50th anniversary of Telstar
Thursday, July 12th between 1:30 and 4pm EST (1730-2000 UT) there will be
a live webcast to commemorate the 50th anniversary of Telstar.
The National Air and Space Museum's Space History and Education divisions,
in collaboration with the French Embassy, will host a symposium to
commemorate the 50th anniversary of the Telstar satellite, representing the birth
of global telecommunications.
The symposium will be presented in two parts. The first is a half-hour
satellite television connection between the Museum and the Pleumeur-Bodou Tele
communications Museum in France to commemorate the first global
transmission of a television signal. Speakers include Secretary of the Smithsonian
Wayne Clough and French Ambassador to the United States Fran?ois Delattre.
The second part of the symposium features three sessions, with historians
and experts from industry and government, discussing major aspects of the
Telstar project and its impact on the development of global communications.
The event also will include footage from the original 1962 broadcast.
Telstar 1 launched on July 10, 1962 from Cape Canaveral and was the first
privately sponsored spacefaring mission. It handled a variety of
transmissions, including telephone, fax, data, still pictures, and television
signals, from several locations across the United States and Europe.
Additional information on the program and the history of Telstar, is
available on a _website_ (http://telstar50.org/) developed by the Embassy of
France.
Be sure to Check SMECC MUSEUM TELSTAR GOODIES
_http://www.smecc.org/telstar_photo_album.htm_
(http://www.smecc.org/telstar_photo_album.htm)
[ _John Pierce / Telstar_ (http://www.smecc.org/john_pierce1.htm) ] ]_A.
C. Dickieson_ (http://www.smecc.org/a__c__dickieson.htm) ] _James Early
/ TELSTAR_ (http://www.smecc.org/james_early___telstar.htm) ]
_Memorabilia / TELSTAR_ (http://www.smecc.org/memorabilia___telstar.htm) ] _Telstar
Broadcasts_ (http://www.smecc.org/telstar_broadcasts.htm) ] _W.J.Bray -
UK_ (http://www.smecc.org/w_j_bray_-_uk.htm) ] _K.D. Smith Bell Solar
Batteries TELSTAR_
(http://www.smecc.org/k_d__smith__bell_solar_batteries_telstar.htm) ] _TELSTAR - Joe Meek_
(http://www.smecc.org/telstar_-_joe_meek.htm) ] _Eugene O'Neill - TELSTAR_
(http://www.smecc.org/eugene_o'niell_-_telstar.htm) ]
On the 12th see the Live Webcast or the archive later at below link
Live Webcast
_http://airandspace.si.edu/events/lectures/webcast_
(http://airandspace.si.edu/events/lectures/webcast) <O>
Hallo Camiel,
Ok, ik zet 'm erbij. Had al wel een 2e liefhebber, die was net
10 seconden later.
Groeten,
Ed
> Hoi ed,
>
> Die wil ik graag meenemen als ik de boekjes ophaal.
>
> Camiel.
> ------Origineel bericht------
> Van:E. Groenenberg
> Afzender:cctalk-bounces at classiccmp.org
> Aan: cctalk at classiccmp.org
> Beantwoorden:General Discussion: On-Topic and Off-Topic Posts
> Onderwerp: VMS 2.5
> Verzonden: 11 juli 2012 08:09
>
>
> I have found a TK50 tape which has written 'VMS 2.5' on it.
>
> I have no read the tape so I do not know if contains anything
> at all. If it does contain something, it could be an installation
> duplicate or just a backup of some system.
>
> Free for who wants it, I only ask for the postage fee to be paid
> (approx $10 - $15 for worldwide shipping)
>
> Ed
>
> --
> Dit is een HTML vrije email / This is an HTML free email.
> Zeg NEE tegen de 'slimme' meter.
>
>
>
> Verzonden vanaf mijn BlackBerry?-toestel van T-Mobile
>
>
--
Dit is een HTML vrije email / This is an HTML free email.
Zeg NEE tegen de 'slimme' meter.
.. I overheard two teenage girls examining each other on tech history.
Girl A : "The first PC was ....?"
Girl B : "...the Macintosh !"
Girl A, looking in her textbook : "Correct !"
Sigh.......
Of course "first PC" is open to debate, but a Mac ?
I should probably be happy that they learn *something* about tech history.
Jos
Hi all,
I would just like to inform you guys, if you haven't read or heard
about it, is that my entry being running an actual MicroPDP-11/83
online 24/7 with 2.11BSD on the internet, is now up. Sure, there are
still some minor things to sort out (like the order of name resolving
in libc apparently :)) and probably some other stuff, but I already
have 30 registered users and some of 'm are RPGing away in old skool
Zork :)
If you want to join in on the fun; http://ls-al.eu/~reiche/retro2012.html
re,
Sander
--
~ UNIX is basically a simple operating system,
but you have to be a genius to understand its simplicity. ~ dmr
> >
> > On Thu, 5 Jul 2012 12:59:38 -0400
> > Ethan Dicks <ethan.dicks at gmail.com> wrote:
> >
> > > I think there was some discussion on this list a while back about a
> > > DIY microcontroller-based DEC LK2xx-to-PS/2 keyboard adapter
> > http://www.kbdbabel.org/ has several converters for different
> > keyboards. LKx01 to PS/2 and vice versa is here:
> >
http://kbdbabel.cvs.sourceforge.net/viewvc/kbdbabel/kbdbabel/kbdbabel-ps2-d…
> >
http://kbdbabel.cvs.sourceforge.net/viewvc/kbdbabel/kbdbabel/kbdbabel-lk-ps…
>
> At a quick glance, those keyboard converters seem to mostly be going the
> wrong way for us. THey are to use strange keyboards on hosts with PS/2
> interfaces. So there's anm itnerface to link an LK201 to a PC, but not
> the reverse.
>
> Odd... Most of the time it's the keyboard, not the classic computer,
> that's either misisng or hard to repair. Converters to link PS/2
> keybaords to classics would eb a lot more useful.
>
> -tony
>
My guess would be they're intended for people who want to emulate the
classic system on a modern machine but utilize the original system's
keyboard. It's not entirely unlike those PS/2 connector 3270 keyboards to
use with IBM terminal emulators.
Amardeep
