test-drb February 2001

test-drb@ccmp.vtda.org

175 participants
337 discussions

by rsdowns＠attglobal.net

Addressed to: classiccmp(a)classiccmp.org "Richard A. Cini" <rcini(a)optonline.net> ** Reply to note from "Richard A. Cini" <rcini(a)optonline.net> Sun, 11 Feb 2001 15:05:17 -0500 Rich, I've got one of those. Mine came with PC-DOS 3.2. The options are: thermal printer, printer cable (only needed to separate the printer from the stack of "slices"), internal modem (1200 bps max), CRT display adapter (functions same as the PC CGA adapter), mono and color displays with a bracket to hold the monitor above the system, serial/parallel adapter, auto power adapter, and battery charger. IBM called the external adapters "function modules", but most people called them "slices". It came with some special software: an application selector (open apps by F-key), Notewriter, Schedule (with reminders and alarms), Phone List (with dialer), Calculator (4 function, 1 memory with M+, M-, MR, MC). Also System Tools: Sys Profile (sets display options, power options, internal modem options) and a front-end for several DOS disk and file commands. Was an interesting machine in its day. Dick

23 years, 10 months

VAX 3100

by KenzieM＠sympatico.ca

Well I checked the password for root, and even created a new account. When Ultrix-32 boots up I get the login box, I enter the password, the screen blanks and a second latter the login box is back. When I tried the new account, (created without password) it does the same thing. There is no message about wrong password. Where should I look next to determine why I keep getting sent back to the login? Is there an easy way to get around the GUI login to the command line?

23 years, 10 months

classiccmp-digest V1 #516

by william.webb＠juno.com

> > > ---------------------------------------------------------------------- > > Date: Fri, 16 Feb 2001 07:53:54 +0000 > From: Paul Williams <flo(a)rdel.co.uk> > Subject: Re: VMS 4.4 source code on microfiche > > Dan Veeneman wrote: > > > > My question is, was DEC in the habit of selling or > > distributing their OS source code to third parties? > > > > If I recall correctly, VMS was written (mostly) in BLISS, but > > since my microfiche reader is still in storage I can't confirm > > the contents of these sheets. > Here's the word from the OpenVMS FAQ: http://www.openvms.compaq.com/wizard/openvms_faq.txt ------------------------------------------------------------ VMS8. In what language is OpenVMS written? OpenVMS is written in a wide variety of languages. In no particular order, OpenVMS components are implemented using Bliss, Macro, Ada, PLI, VAX and DEC C, Fortran, UIL, VAX and Alpha SDL, Pascal, MDL, DEC C++, DCL, Message, and Document. And this is certainly not a complete list. However, the rumor is NOT true that an attempt was made to write pieces of OpenVMS in every supported language so that the Run-Time Libraries could not be unbundled. (APL, BASIC, COBOL and RPG are just some of the languages NOT represented!) There are a large variety of small and not-so-small tools and DCL command procedures that are used as part of the OpenVMS build, and a source code control system capable of maintaining over a hundred thousand source files across multiple parallel development projects, and overlapping releases. ------------------------------------------------------------ And what you've got are source LISTINGS, not source CODE. You can't compile them and come up with workable VMS. I think that I once read that historically, compiling and linking the newest version of VMS usually takes a full weekend on the fastest machine available. ============================== William W. Webb, EDS, c/o USPS CMF/OSS/MS 4924 Green Road Raleigh, NC 27616 919 874 3043 > The company I work for used to get these, so I have a box of the > same > fiches. I don't think we ever _used_ them, though. > > My main use for it has been to extract the parsing tables for DSR > (Digital Standard Runoff), in order to write a program to accurately > convert Runoff documents to HTML. > ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less! Join Juno today! For your FREE software, visit: http://dl.www.juno.com/get/tagj.

23 years, 10 months

You may be a geek if.

by ajp166＠bellatlantic.net

>252KB/minute. What is the audio length of a vinyl? I'm not sure, but if >we make a nice round 60 minute, then we're looking at about 15meg. assume 30minutes a side is the high end. > >duplex. LProms would be a read-only system. Also, the figure of 33300bps >is based on a modem audio resolution of 2400baud. I don't know the audio 300 baud was hard to do! bandwidth extends to in excess of 15khz but, the signal to noise level is poor. >Next up, we look at the modulation/demodulation to use. We'll want a >compression that takes best advantage of the medium. (I suspect v.42 is >not it!). Lastly, LP's are stereo - so that either immediately doubles >our capacity (assuming L and R can be kept 100% independant. If they can't >be guaranteed to be kept seperate, then I'm sure capacity could still be >increased by using L and R as checksums against each other or something ;) No do able as L & R signals are sum and differenced running around 25-30db under best conditions. So there will always be some of the other channel present in the other. >Problems with LProms are quality of reading - you run a very real risk >of bitrot if your needle is of poor quality. Also, you'll need some >way to sync the end of sideA with the start of sideB - there is some >data loss there. (this could probably be kept to a minimum by using the >leadin/leadout areas :) Stylus is a small part of the story, the Vinyl wears, deforms from actual use, and pressing errors. Leadin/out are not a real factor compared to the actual cuts. Records suffer from: Wow, slow variations in speed. Flutter, fast variation in speed Noise, both hiss and pop distortion both in phase and waveform. These vary from pressing to pressing and decay with use of the master. The quality of the base is important (hiss and pop noise). Also the acutal recording and transscription process prior to cutting the master can introduce artifacts. I still have a rather extensive collection of records from the pre-Altair era and have invested in keeping my Yamaha running as it can. You had to be very careful to keep a some 30+ year old copy of Iron Butterfly listenable. >So, did I have an answer in all that? I'm pretty sure you'd get 15meg on >a vinyl easily, and could quadruple that figure with a bit of effort :) With modern DSP technology better is possible but there are far newer technologies that are proven. Allison

23 years, 10 months

You may be a geek if.

by ajp166＠bellatlantic.net

>I seem to recall way back when seeing magazines with "floppy" plastic >records in them that you'd play into your computers tape jack to load the >software. ISTR something for the TRS-80 Model I and the KIM-1.... It was tried by Interface Age, Robert Uterwick's (SP?) Floppy rom was a 6800 based basic and there was an 8080 accounting package. They relied on the then standard or easily assembled Kansas city standard (300 baud redundant FM) as the modulation and then applied the "tape File" standards appropriate to the cpu/monitor in question. They were 33-1/3rpm small diameter formats (sound sheets). Allison

23 years, 10 months

A) Hooray for SOLace 2.2 & B) Type 'n Talk power supply needed

by r.stek＠snet.net

A) Stop everything and run over to http://www.thebattles.net/sol20/solace/solace.html and download Jim Battle's newest update to the best emulator in the world. This guy is amazing! Now you play and record virtual cassette tapes on your emulated SOL. It's the next best thing to having a non-emulated Sol - <g>! B) I finally found a Votrax Type n' Talk after a search of several months (and refusal to overpay on eBay), but when I received it today, I found that it lacks the power supply - a cute little thing with a 5-pin DIN plug supplying 26 VAC, 180 ma on pins 1 and 3, 20 V DC 50 ma on pin 2 and pin 4 is 0 volt reference. Not exactly something I can whip up in a hurry., Sooo... does anyone have an "extra" unit they would like to trade - either the power supply or both pieces. And if so, what might you be looking for? Thanks. Bob Stek Saver of Lost Sols

23 years, 10 months

Pictures of first Dutch computer collectors meeting available

by kees.stravers＠iae.nl

Fellow collectors, It gives me great pleasure to let you know that the first meeting of computer collectors in The Netherlands was a great success. We have our own mailing list in the Dutch language, cvml(a)egroups.com, and on this list the plan grew for the members to actually meet in person and bring some nice computers to show to fellow collectors and tell stories about them. A venue was found in Rotterdam and last saturday it all happened. Not too many people visited, but those that did had a great time, and in about half a year another meeting will be held. Pictures of the first meeting can be seen at http://home.iae.nl/users/pb0aia/cm/cvml/index.html and http://www.xs4all.nl/~rimmer/cvml/meeting_index.html Kees.

23 years, 10 months

Nubus (was CC-40)

by xds_sigma7＠hotmail.com

No, I wasn't saying it *used* nubus, only that it uses a similar kind of connector, sorry for the confusion. I highly doubt it uses nubus. Will J _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com

23 years, 10 months

Fixing VT220s

by JRichardson＠softwright.co.uk

> This is a common 'stock fault' with these units, and seems to always be I was hoping that was the case :-) Seems like a lot of 80's display hardware have common ways of failing. > caused by bad contacts at the horizontal hold preset. I've lost count of > the number I have fixed by the following procedure... yep - that was exactly the problem - I found that out more by accident than anything before reading your reply :) I pulled the case off and just went to tweak the horizontal hold pot to see what effect it had on the display (to try to track down the fault a bit further) and the display choked into life as soon as I touched it. now I just need to make a suitable comms lead, I seem to have lost all of mine :) cheers Jules --

23 years, 10 months

You may be a geek if.

by John.Allain＠Donnelley.InfoUSA.Com

>contraption which recorded on Punch Cards Spools of Wire Magnetized Cardboard Photosensitive Film Clear plastic disks Audio Cassettes VHS Cassettes encased 1/2 size CDR's ...Fluidic Logic Gates . . . . I think this thread mainly illustrates (with great examples, THANKS) the difference between what's feasible and what's marketable. Let's face it, a good engineer can get anything to do anything else but when its' considered a success is when a million or more people can do it with a single push of a button. (And for less than a weeks salary). John A. (check out the price of those VidLP's Yike)

23 years, 10 months

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test-drb February 2001