test-drb December 2000

test-drb@ccmp.vtda.org

192 participants
490 discussions

by rmeenaks＠olf.com

Apparently, this didnt make it here :-( Ram ----- Original Message ----- From: <rmeenaks(a)olf.com> Newsgroups: comp.sys.transputer,comp.os.parix To: <classiccmp(a)classiccmp.org> Sent: Sunday, December 10, 2000 9:14 AM Subject: HELP: BBK-S4 and Solaris 2.6 > Hi, > > I am trying to get a BBK-S4 SBus-based transputer card working on a SUN > IPX workstation running Solaris 2.6. I have the Basic Transputer > Support Software (BTSS 3.1) which has support for Solaris. However, I > do not have any documentation. The BTSS requires the creation > of "/dev/sbus?" in order for it to communicate with the transputer. I > do not have any /dev/sbus[0-3] devices on my system. I tried to > symbolically link one of the sbus psuedo devices that is found > in /devices to /dev/sbus[0-3], but that doesnt seem to work. How do > you create the /dev/sbus[0-3] devices? I am trying to get Parix 1.2 > running on a T8-based Xplorer. This is the 1st step in many to come to > get this system up and running. Any help is much appreciated... > > Oh, before anyone asks, I booted using "boot -r" to reconfigure the > system, but that didnt work either... > > Ram > > > Sent via Deja.com http://www.deja.com/ > Before you buy.

23 years, 7 months

Fw: Professors worry that engineering students don't tinker

by ajp166＠bellatlantic.net

-----Original Message----- From: ajp166 <ajp166(a)bellatlantic.net> To: Classic Computers <classiccmp(a)classiccmp.org> Date: Sunday, December 10, 2000 9:44 PM Subject: Re: Professors worry that engineering students don't tinker >From: Tony Duell <ard(a)p850ug1.demon.co.uk> > > >>> >-tony (who grew up holding a acrewdriver, built his first radio 28 >years >>> >ago. For the UK people, the semiconductors were an OC45 (regenerative >>> >RF/AF stage), 2 OC71s (AF stages) and a couple of OA81 diodes. That >>> >should identify it. And who's probably fiddled with more pieces of >>> >machinery and electronics than an entire graduating engineering class >has >>> >at most universities...) >> >>You know, I am a little concerned that not one UK member of this list >>recognises that radio circuit. I thought just about everybody built it >at >>some point... > > >Actually it's more unique to the UK than here in the usa. The common >transistor radios here were the very simple 2 transistor reflex and the >standard >six transistor superhet. > >I'm likely one of the few here that has built the AA5 (all American 5) 5 >tube AM superhet that was common, later transistor designs and IC >based systems. Most of my efforts were in generatiing RF power >and measuring it. the thing that keep my interest is the intersection >of communications (radio) and computers. > >Building and analysing already built machines is a great exercise and >creative >instigator. > >Allison > > > >

23 years, 7 months

GOOD scrounging day!

by rigdonj＠intellistar.net

OK while the rest of you are freezing and getting ready for Christams, we here in Florida and enjoying beautifull wheather and still fighting over the election! A few of us are taking advantage of the weather and are out scrounging for old computers and other interesting stuff. That's what I did yesterday. My haul included a Morrow Micro Decision, a Tektronix 8002a Developement system and the external 8" disk drives, an immersion cooler, six or seven Busch & Lomb model 21 Spectrophotometers and a manual for my IBM MD-2 Maintenance Device. I ran out of car before I ran out of goodies so I left behind a Tektronix 4016 terminal, a tektronix 4024 terminal, an ADM-3A terminal and an ADDS 25 terminal. One of my coolest finds was a Paratronics model 100a Logic Analyzer with the manual. This must be one of the first logic analyzers on the market. It's about the size of a cigar box and uses a scope of other monitor with an X-Y input for the display. The manual is dated 1977 and it says that this an improved version of the one that was in the cover story of the Feb 1977 issue of Popular Electronics. (Does anyone have that issue?) The mauual gives example of how to use it with the Altair, Intel 8080, Motorola 6800, Fairchld F-8, National SC/MP, Z-80, Bit Slice CPUs and the RCA Cosmac. This will make a nice companion piece for my Altair. Also spotted a Color Monitor for the TI-99/4. It's nothing but a color TV with the tuner removed. I knew RS sold this kind of thing but I didn't know that TI did also. I didn't pick it up but if anyone wants it, contact me and I'll tell you where it's at. It's in a surplus store and I have no idea what they want for it. I'm looking for info on the Morrow Micro Decision. If anyone knows much about them, let me know. Joe

23 years, 7 months

Anyone remember the Pan network?

by vcf＠siconic.com

Does anyone remember or has anyone even heard of the Pan Network from the mid-80s? Apparently it was a dial-up network system used by musicians to trade midi files and what-not. If anyone has any remembrances of this that they can share or, even better, magazine article cites, then I would greatly appreciate if you could share them. Thanks! Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org

23 years, 7 months

Chad on eBay

by jfoust＠threedee.com

Florida ballot Hollerith card chad is going for $20-40 +$3-7 S/H on eBay. In some cases, the *single* chad is behind glass in its own 8x10 frame. - John

23 years, 7 months

no power to Toshiba T1200 laptop

by ethan_dicks＠yahoo.com

--- Mark Price <markp(a)wccls.lib.or.us> wrote: > I picked up a Toshiba T1200 laptop at Goodwill yesterday. Of course, it > came with nothing, not so much as a power adapter, and nothing there to test > it with, but I couldn't resist. I picked a power adapter from Radio Shack > this morning, 12V, 1500mA, and plugged it in. IIRC, the T1200 wants 9VDC (there's a block of 4 NiCd cells inside that suggests to me that it's 6VDC internal and 9VDC to charge it) I just happened to see one about a week ago at our weekly Geek Lunch. I'm pretty sure the wart was 6VCD. Good luck, -ethan ===== Even though my old e-mail address is no longer going to vanish, please note my new public address: erd(a)iname.com The original webpage address is still going away. The permanent home is: http://penguincentral.com/ See http://ohio.voyager.net/ for details. __________________________________________________ Do You Yahoo!? Yahoo! Shopping - Thousands of Stores. Millions of Products. http://shopping.yahoo.com/

23 years, 7 months

Kansas City standard cassette recording

by donm＠cts.com

A tad over two years ago, there was some dialogue about the Kansas City standard for cassette recording of microcomputer files, and a chap named Heinz W. Wiggeshoff provided some information via alt.folklore.computers, and offered both images of programatic nature and circuit information on request. (See following.) If anyone obtained those images and circuit information, please respond to philpem(a)btinternet.com with Cc to me. Many thanks. - don ================================= >From ordeal.cts.com!newshub.cts.com!usc!howland.erols.net!torn!nott!cunews!freenet-news.carleton.ca!FreeNet.Carleton.CA!ab528 Tue Dec 9 12:52:46 1997 Path: ordeal.cts.com!newshub.cts.com!usc!howland.erols.net!torn!nott!cunews!freenet-news.carleton.ca!FreeNet.Carleton.CA!ab528 From: ab528(a)FreeNet.Carleton.CA (Heinz W. Wiggeshoff) Newsgroups: alt.folklore.computers Subject: Re: Kansas City cassette recording format Date: 9 Dec 1997 19:00:30 GMT Organization: The National Capital FreeNet Lines: 53 Message-ID: <66k4ge$2ae(a)freenet-news.carleton.ca> References: <ygeoh2q4txr.fsf(a)outoften.doc.ic.ac.uk> Reply-To: ab528(a)FreeNet.Carleton.CA (Heinz W. Wiggeshoff) NNTP-Posting-Host: freenet5.carleton.ca X-Given-Sender: ab528(a)freenet5.carleton.ca (Heinz W. Wiggeshoff) Xref: ordeal.cts.com alt.folklore.computers:176771 X-Cache: nntpcache 1.0.7.1 (see ftp://suburbia.net/pub/nntpcache) Stephen Crane (jsc(a)outoften.doc.ic.ac.uk) writes: > Anyone out there got any technical information about this? I have > some cassettes of varying age and quality whose information I'd like > to retrieve, preferably using my PC's audio card. Ideally, someone > will have written a program for Linux which does this but, given the > info, I'll have a bash at it over Xmas. From Microprocessor Interfacing Techniques by Austin Lesea and Rodnay Zaks (whatever happened to him?) c/r 1978 SYBEX Inc. ISBN 0-89588-003-2 p. 128 KANSAS CITY STANDARD In order to use these inexpensive recorders in the hobby market, a standard was proposed and adopted by hobbyists. Using frequency shift keying techniques, and frequency double frequency [sic] modem techniques, this standard is easy to use. The drawback is the data rate of 30 characters per second. The system takes standard serial RS-232C data ... and converts each bit to either 8 cycles of 2400 hertz (a "1") or 4 cycles of 1200 hertz (a "0"). To generate this, only a few flip-flips [sic] are required along with a quad NAND gate. Shown in Fig. 4-55 is the modulator. [Image sent on request] [Circuit function, ditto] The demodulator must detect whether 1200 hertz or 2400 hertz tones are present. There are many ways of doing this; however a common one is to detect zero crossings of the input signal. This will generate either 2400 or 4800 pulses per second. [Circuit details sent on request] The circuit for the demodulator appears in Fig. 4-56. The de- modulator timing appears in Fig. 4-57. Note how one gets back what one started with, along with the necessary clock information. If the tape speed varies, the data may still be recovered as the clock information will insure the UART receives the proper timing signal. No special software is needed as this interface makes the cassette look like a paper-tape, punch-reader combination to the computer. [Images sent on request] (This format is found between the KIM cassette interface, and the One Chip Digital Cassette controller using the NEC UPD371D.) (Surprisingly, the documentation for my Heathkit ETA-3400 only mentions the frequencies, not the details of the encoding.)

23 years, 7 months

OT: telnetd for Win98

by vaxman＠uswest.net

Sorry for the OT, but y'all are the brightest computer savvy folks I know :) I'm looking for a telnet server (not client) for Windows 98 (Second edition)... Something that will let me log in, and give me the equivalent to a command window... I'm trying to set up a method of putting VHDL simulations on idle PCs at work :) clint

23 years, 7 months

Osborne manuals

by rigdonj＠intellistar.net

Here's the list of the Osborne Manuals and software that I could find. I'm planning on sending them to Josh for him to scan. Does anyone else have any other manuals? Joe Osborne computer books and original software disks. 1) Osborne “Approved Software” binder with original disks: Osborne Executive CP/M Plus ver 3.0 System disk Osborne Executive CP/M Plus ver 3.0 General Utilities disk Osborne Executive CP/M Plus ver 3.0 Advanced Utilities disk Osborne Executive CP/M Plus ver 5.21/2.38 MBASIC/CBASIC disk Osborne Executive CP/M Plus ver IV.12.B USCD P-System disk Osborne Executive CP/M Plus ver 1.12/1.00 Super Calc with SDI disk Osborne Executive CP/M Plus ver 3.30 WordStar/Mailmerge disk Osborne Executive CP/M Plus ver 2.00 WordStar Install disk Osborne Executive CP/M Plus ver 1.06 Personal Pearl (6 disks) 2) “Osborne Executive Guides” box with: Volume 1 Mastering the Osborne Executive (PB) Volume 2 Working with Text and Spreadsheets (PB) Volume 3 Managing Information with Personal Pearl (PB) Volume 4 Operating Systems (PB) 3) “Osborne Executive Reference Guide” box with: Volume 0 Beginner’s Guide (PB) Executive Reference Guide binder with: Executive Reference Guide (PB) and loose notes inside 4) “Osborne 1 User’s Reference Guide” book (PB) 5) Osborne “Approved Software” binder with: Personal Pearl Easy Tutorial User’s Guide (loose pages) Personal Pearl Advanced Tutorial User’s Guide (loose pages) Personal Pearl Reference Manual (loose pages) 6) “Osborne 1 Technical Manual” binder Osborne 1 Technical Manual (a BIG manual) (loose pages)

23 years, 7 months

CD's as parabolic mirrors?

by dhquebbeman＠theestopinalgroup.com

> On December 8, Megan wrote: > > >I remeber reading that a hologram of a lens would refract light in the > > >same was as a real lens would. This concept has formed the basis for > > >the flight-of-fancy holodeck/holosuite concept from Star Trek. > > > > <ot> > > The holodeck supposedly uses both hologram projectors and transporter > > technology... I suspect it should also use shield technology, too... > > </ot> > > The Trek world's holodecks don't have anything at all to do with > holographic lens technology. They use a combination of holography > (for background scenes and "wall extension") and transporter-style > matter synthesis for "solid" objects. I wasn't talking about the explanation Giordi LaForge would give for how it worked, but how the writers were likely inspired to create the plot device. regards, -dq

23 years, 7 months

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test-drb December 2000