test-drb

test-drb@ccmp.vtda.org

101090 discussions

by quapla＠xs4all.nl

During a cleanup of stuff at our company, some interesting items popped up and which I could take home. A device which emulates 2 tu-58's but then as 2 3.5" floppies, 2 complete 11/34a board sets + operator console interface & 64KW mem one complete 11/24 (cpu. KT24, 128Kw mem) a test unit for SMD drives (for CDC & RM02/3/5), a spares kit for an LA-120/Decwriter III a box full with all kinds of DEC loop-back test connectors a crt testkit with 8 different tube connection boards. Ed -- Dit is een HTML vrije email / This is an HTML free email.

14 years, 4 months

teaching programming to beginners

by Arno_1983＠gmx.de

Dave Riley wrote: > I shudder at the fact that many of our high schools use Java as an introductory language. I really can't see the point of starting someone out saying, "Your program runs from a special method in a special class (we'll teach you what both of those are later) labelled 'public static void main()'. Just wave the chicken correctly, and maybe if you stick with it long enough, you'll find out what that magic incantation means." Well put. Alas that was the situation I was facing in University, where Java was a compulsory assignment for all EE students (and thus probably their first encounter with programming for some of them). I had hitherto only dabbled in various BASIC dialects (CBM, Borland Turbo, and Visual BASIC) - and NO, I don't feel like a brain-crippled Zombie! - but had read my share of C code too, so one of the instructors asked me whether I was a C coder - but probably just because I had picked up that style of abbreviated, mixed-case procedure and variable naming... That however only came later, when I took a course "Systems programming in C". There at last, some really useful education about things like I/O, queues and scheduling (however *n*x-centric) started to happen - but that course was primarily targeted at grammar / high school level *teachers*! I was just barely allowed to take an oral exam and turn in the earned credits (an A-) for my diploma on a special agreement basis. A while later, I also got some exposure to FORTH when I started hacking around on Sun workstations, like modifying their boot net routines (to get away from the RARP requirement that some OBP revisions imposed) and adding support for nonstandard frame buffer resolutions. (BTW, anybody here been into the cgthree ASIC deep enough to tell me whether it can do interlacing and if so, how to frob it to?) I did also got to write some assembly for an AVR microcontroller in my pre-diploma thesis. Arno Kletzander ...sent from my HTC Magician PDA

14 years, 4 months

Early electronic music..

by jdr_use＠bluewin.ch

While not a computer, it might still be of interest here : http://news.bbc.co.uk/2/hi/programmes/click_online/9671950.stm Jos

14 years, 4 months

SIGSALY

by mark.kahrs＠gmail.com

I grabbed a copy of a free (!) publication from the Cryptologic Museum entitled "The start of the Digital Revolution: SIGSALY - Secure Digital Voice Communications in World War II". It mentions that you can visit the library and look at "The Green Hornet... America's Unbreakable Code for Secret Telephony" -- privately published in 1999 by D. E. Mitchell. It says it is very complete. And yes, the museum only has a mock up. But when you consider the noise disks, it's an amazing feat.

14 years, 4 months

mini-M68000 home brew computer

by LYNCHAJ＠YAHOO.COM

Hi! One of the lesser known N8VEM home brew computers is the ECB mini-M68000 board. Presently it runs TUTOR 1.3 and we are planning on porting CP/M-68K Here is a description of the computer. It connects to the ECB bus to use various other home brew computer peripherals. http://n8vem-sbc.pbworks.com/w/file/48863865/baby%20M68K%20descr.txt All of the information is public and freely available. The PCBs are $20 each plus $2 shipping in the US and $5 elsewhere. http://n8vem-sbc.pbworks.com/w/browse/#view=ViewFolder&param=ECB%20mini-M680 00 If you would like to build one of your own mini-M68000 please contact me at LYNCHAJ at YAHOO.COM The main discussion on the mini-M68000 is on the N8VEM mailing list http://groups.google.com/group/n8vem Thanks and have a nice day! Andrew Lynch

14 years, 4 months

Vintage Macintosh SE2 in HB, CA

by jws＠jwsss.com

http://orangecounty.craigslist.org/sys/2788398684.html not my listing, but not far if someone needs help getting it. Jim

14 years, 4 months

HP HIL ID module: what's it for?

by legalize＠xmission.com

I keep seeing these listed on ebay and I don't understand what role they play in the HP HIL environment. Can someone enlighten me? -- "The Direct3D Graphics Pipeline" -- DirectX 9 version available for download <http://legalizeadulthood.wordpress.com/the-direct3d-graphics-pipeline/> Legalize Adulthood! <http://legalizeadulthood.wordpress.com>

14 years, 4 months

Huhi.. TITS? for PDP11?

by holm＠freibergnet.de

Hi, As I already wrote before, I have an russian PDP11, an Elektronika E60. I'm repairing currently some spare boards. I do have diskettes with an TMOC Test System with some Hardwaretests: -TMOS- MONITOR DXTC 06-JUN-84 28K RESTARTADR: 152250 GELADEN VON LW : 0 UM DIE MITTEILUNG ABZUBRECHEN, DRUECKEN SIE CTRL/C(^C) ->MONITORBEFEHLE: F<CR> STELLT VERZOEGERUNGSWERT EIN D<CR> AUSGABE DIRECTORY AUF TERMINAL D/F<CR> KURZFASSUNG DIRECTORY AUF TERMINAL D/L<CR> AUSGABE DIRECTORY AUF DRUCKER D/L/F<CR> KURZFASSUNG DIRECTORY AUF DRUCKER R FILNAM<CR> LADET UND STARTET EIN PROGRAMM L FILNAM<CR> LADET EIN PROGRAMM IN SPEICHER S<CR> STARTET GELADENES PROGRAMM S ADR<CR> STARTET GELADENES PROGRAMM VON ADRESSE ADR C FILNAM<CR> BEFEHLSABARBEITUNG KETTENFILE C FILNAM/QV<CR> SCHNELLE BEFEHLSABARBEITUNG KETTENFILE (JEDER FILE NUR EINMAL) .D NUMMER FILNAM.TYP DATUM LAENGE START 000001 DXTC .BIN 11-DEC-84 17 000050 000002 UPD1 .BIN 9-JAN-85 17 000071 000003 UPD2 .BIN 23-JAN-85 31 000112 000004 XTECO .BIN 23-JAN-85 30 000151 000005 COPY .BIN 23-JAN-85 27 000207 000006 TMOC01.DIR 4-JUN-80 2 000242 000007 CPUC .BIC 11-DEC-84 17 000244 000010 CPUZA .BIC 11-DEC-84 17 000265 000011 CPUFP .BIC 11-DEC-84 16 000306 000012 INT .BIC 11-DEC-84 12 000326 000013 PIO .BIC 11-DEC-84 6 000342 000014 SYS .BIC 11-DEC-84 17 000350 000015 MEM .BIC 11-DEC-84 9 000371 000016 DXD .BIC 15-MAY-85 20 000402 000017 DXC .BIC 19-DEC-84 17 000426 000020 SIO .BIN 11-DEC-84 8 000447 000021 REAS .BIN 1-APR-83 13 000457 000022 013101.BIN 22-OCT-82 8 000474 000023 VT13 .BIN 1-JAN-70 24 000504 000024 UPIO .BIN 13-DEC-84 8 000534 000025 BOOT .BIN 13-DEC-84 2 000544 000026 MTC .BIN 9-JAN-85 14 000546 000027 MTD .BIC 9-JAN-85 12 000564 000030 001103.BIN 6-JUN-80 9 000600 000031 TT .BIN 23-JAN-85 24 000611 000032 T .BIC 12-APR-90 1 000641 000033 TOME .CCC 21-FEB-85 1 000642 000034 TST1 .BIC 24-JUN-81 6 000643 000035 TST2 .BIC 24-JUN-81 6 000651 000036 TST3 .BIC 24-JUN-81 6 000657 000037 TST4 .BIC 24-JUN-81 6 000665 000040 TST5 .BIC 24-JUN-81 6 000673 000041 TST6 .BIC 24-JUN-81 6 000701 000042 TST7 .BIC 24-JUN-81 6 000707 000043 TST8 .BIC 24-JUN-81 6 000715 000044 TST9 .BIC 24-JUN-81 6 000723 000045 HILFE .TXT 24-JUN-81 5 000731 000046 KOMUPD.TXT 24-JUN-81 6 000736 000047 PUFFER.BIN 9-APR-80 1 000744 000050 DOR00 .BIN 11-APR-84 1 000745 000051 0 .BIN 11-APR-84 1 000746 000052 I2 .CCC 27-MAR-85 1 000747 000053 DIR .CCC 21-MAY-85 1 000750 000054 MK .BIN 28-FEB-85 1 000751 000055 ZETST .CCC 1-JUL-85 1 000752 000056 ZETST .BAK 1-JUL-85 1 000753 ... this is a german version. Is this an old XXDP or what? I've tried to run the Program REAS.BIn and get that: .R REAS TITS 75 19DEC79 FOR: 11/03 WITH: TRAP VGDISP LDEV PDEV ...entered some numbers and finally an 'L', than it hung. Maybe it wanted to load something from the Tape Reader or so, there is none connected... 1207 421 12706 ? ? 105067 L What the heck is TITS? (Yes, I know that womans have tits, and I know how to mount them :-)) I don't think that this is a russian Program, does anybody knows something about it? Kind Regards, Holm -- Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe, Freiberger Stra?e 42, 09600 Obersch?na, USt-Id: DE253710583 www.tsht.de, info at tsht.de, Fax +49 3731 74200, Mobil: 0172 8790 741

14 years, 4 months

Beehive International's first terminal in 1968

by legalize＠xmission.com

I've been reading through the documentation included with some Beehive B100s that I purchased. Included in that was a statement in a brochure that Beehive started with their first terminal product in 1968. I'm interested if anyone knows any additional information about these early Beehive terminals. -- "The Direct3D Graphics Pipeline" -- DirectX 9 version available for download <http://legalizeadulthood.wordpress.com/the-direct3d-graphics-pipeline/> Legalize Adulthood! <http://legalizeadulthood.wordpress.com>

14 years, 4 months

Can PDP-11/23 boot MSCP devices

by pontus＠update.uu.se

Hi The topic says is all, can a PDP-11/23 (on a M8189 card) boot from MSCP devices? My guess is that you need proper roms on your BDV11 ? Would these usually be included? Regards, Pontus.

14 years, 4 months

Xyplex terminal server

by tsw-cc＠johana.com

I have a nice Xyplex 1640 terminal server that for the most part works just fine. The little problem is that I am attempting to get the memory card functional. To that end, I enter the command: Xyplex>> show card status To which I get the response: Xyplex -786- Memory Card Feature disabled So my question is: How do I enable this nice feature. Is it a function of the software image (I'm using V6.3S15), or some magic command that I need to sprinkle holy water upon? I write this message here, since this is an older device and somebody here probably knows the secret incantation. As always, I thank all for their help. -- Tom Watson tsw at johana.com being at home for the present.

14 years, 4 months

Anyone have a case or memory for an HP 9000 712/60

by james＠slor.net

I have a 712/60 in fine working condition, but the top case is darn near splitting in half. If anyone happens to have a spare case in good shape, I'd love to replace the cover on mine. Secondary to that, I also wouldn't mind upgrading the memory to something bigger than the 32 MB that's in it now. I'm in Indianapolis, IN. Thanks! James

14 years, 4 months

teaching programming to kids - Re: Looking for 8080/Z80 BASIC

by dm561＠torfree.net

----- Original Message: Date: Thu, 05 Jan 2012 13:50:11 -0500 From: Dave McGuire <mcguire at neurotica.com> > There have always been lazy, disinterested programmers who don't care > about becoming better programmers. Now it's pretty much ALL of them. ---------------- I thought _you_ were a programmer; shouldn't that be 'us' instead of 'them'? Oh, I see, you exclude yourself of course, and perhaps even a few select members of this group, right? What other "them"s do you make denigrating generalizations about? Plumbers? Women? Jews?

14 years, 4 months

Steve Gibson's SBC6120 loader

by dgriffi＠cs.csubak.edu

I was looking at Steve Gibson's tools for playing with the SBC6120 at http://www.grc.com/pdp-8/os8utils-sbc.htm and started wondering. Does anyone here know how to do under Linux what those three utilities do? I suppose the WinToAta and AtaToWin could be replicated with dd(1) and some glue shell scripting. The third one appears to be a disk partitioner. What's going on there? -- David Griffith dgriffi at cs.csubak.edu A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

14 years, 4 months

Contact request: Curtis Wilbar

by mtapley＠swri.edu

All, apologies, I'm trying to reach Curtis H. Wilbar Jr. If you have contact info for him, please let me know at your convenience. Thanks, -- - Mark 210-379-4635 ----------------------------------------------------------------------- Large Asteroids headed toward planets inhabited by beings that don't have technology adequate to stop them: Think of it as Evolution in Fast-Forward.

14 years, 4 months

The PDP-8/L at the RICM is running!

by michael.99.thompson＠gmail.com

After seven months of Saturdays the PDP-8/L at the Rhode Island Computer Museum is finally running. It had 22 broken flip-chips, almost 20% of the modules in the system. Without lots of help from Warren Stearns, suggestions from Vincent Slyngstad, and donated spare modules from Vince Pavlicek we never would gotten it running. See: https://sites.google.com/a/ricomputermuseum.org/home/Home/equipment/pdp-8-l for details on the system and the debug process. Does anyone know of a source for peripherals that we use with the 8/L? -- Michael Thompson

14 years, 4 months

VCF East keynote announced

by evan＠snarc.net

Hi all -- this year's VCF East 8.0 keynote speaker is Tom Kurtz, who co-developed BASIC while at Dartmouth in the mid-1960s. There will (probably) be a second equally awesome speaker announced soon .... I wish I could reveal who, but he's not confirmed yet. ;) The show is May 5-6 this year, at our usual location in New Jersey. - Evan

14 years, 4 months

Cromemco FDC

by james＠attfield.co.uk

> James Attfield wrote: > > > > FYI the ROM on the 'FDC flips in and out the entire top 32K bank. > > I just double checked the schematics and this is not correct. > The 16FDC feeds address lines 15-12 through a 74ls30 to do a > specific decode for a 4K address range, normally set to $C000-$CFFF. > If the high four address bits do not match, the card will not > respond. > > Bill S. My sloppy work, apologies, I was referring to the top bank of the memory cards - the top 32K of a 64KZ will remain disabled until RDOS has relocated itself during boot or test sequences then it switches it back in. Ignore comment about port 40H - that is used for bank switching in 8-bit systems. Jim

14 years, 4 months

Cromemco FDC

by james＠attfield.co.uk

> Hi Jim, > Are you the same Jim I'm corresponding with elsewhere about a broken > 256/1024KZ? > If so, you and I can discuss the 64FDC off-list; I haven't heard from Jerry. > I do have some IMI drives, both the 8" 11MB and the 5" 5MB and 20MB units, > but I'm pretty sure at least some of them are non-functional.What > size/capacity are you looking for? > IMI drives were also used by Corvus; as a matter of fact the two companies > ultimately merged. The IMI 20MB mechanism was also available with a normal > ST412/506 interface card and used in XT clones etc., in case you have a > defective drive with a good IMI board and can find one of those drives. Hi Mike, yes I am - I'm about to start in on the 256KZ just now. Agreed we take this off-list - I'll drop you an email. Jim

14 years, 4 months

FORTRAN vs. BASIC [was RE: Right toolf for the job (Was: teaching programming to kids]

by RichA＠vulcan.com

From: Fred Cisin Sent: Wednesday, January 04, 2012 7:54 PM On Wed, 4 Jan 2012, allison wrote: >> Never used Fortran. > Think of it as an old-style version of BASIC. WRITE is like PRINTUSING, > with FORMAT being where you specify the print pattern. Any variable whose > name starts with the letters I J K L M or N (alphabetic letters between I > and N (which is the start of "INteger")) is assumed to be an int, unless > you tell it otherwise. Many brands of it require giving a line number to > every line. CALL instead of GOSUB, . . . There are so few differences > that you can list them! You corrected/clarified the statement regarding "line numbers", but it's still not correct. FORTRAN does not have line numbers, it has *statement* numbers, and they need not be sequential, nor increasing from beginning of program to end. Certain constructs, such as the DO loop and the FORMAT-driven I/O statements, *require* statement numbers: DO 10 I=1,10 WRITE (7,100) I 10 CONTINUE 100 FORMAT (1X,1I3) Statement numbers occur in the first 5 columns of the input card; a character other than a space in column 6 marks a card as a continuation of the preceding statement. Spacing within columns 1-5 is not significant. >> My first language was Darthmuth BASIC on GE Tymeshare. > I've always assumed that Kurtz and Kemeny's intent was just to make > getting started in FORTRAN a little easier for beginners. You don't have to assume. They state as much in the early documents. Rich Alderson Vintage Computing Sr. Systems Engineer Vulcan, Inc. 505 5th Avenue S, Suite 900 Seattle, WA 98104 mailto:RichA at vulcan.com mailto:RichA at LivingComputerMuseum.org http://www.LivingComputerMuseum.org/

14 years, 4 months

Fwd: IEEE Spectrum article about UNIX

by paulkoning＠comcast.net

One of my colleagues sent this; I figured the list might find it interesting. paul Begin forwarded message: > ... > Subject: IEEE Spectrum article about UNIX > > Thought you might find this interesting: > > http://spectrum.ieee.org/computing/software/the-strange-birth-and-long-life… >

14 years, 4 months

Visiting the Cryptologic museum

by mark.kahrs＠gmail.com

Over the break I visited the NSA's museum (just a stone's throw from Ft. Meade). For those who like crypto machines, it is definitely, definitely worth a visit. The curators and staff are very enthusiastic (they even brought out a machine from the back vault) and of course you can buy an NSA t-shirt if your heart desires. They had a mix-up with the Y-MP processor board and memory board on display (I told them) but otherwise it's fun just to see a Cray I up-close-and-personal. They have the tape jukebox being run from a PC. And the CM is flashing lights, but that's about it. The modern crypto gear is shown but the commentary is sparse at best. (In case you're wondering, the boxes are empty -- so I was told). There is little mention of public key cryptosystems. Or controversial questions like key length or key escrow. But worth a detour? Definitely.

14 years, 4 months

teaching programming to kids - Re: Looking for 8080/Z80 BASIC

by dm561＠torfree.net

------- Original Message: Date: Thu, 05 Jan 2012 13:09:54 -0500 From: Dave McGuire <mcguire at neurotica.com> On 01/05/2012 10:52 AM, Liam Proven wrote: ... >> I have read the first few pages of The Little Schemer, generally hailed >> as the best introduction to Scheme there is, and I found it completely >> incomprehensible - and I am a skilled computer professional with around a >> quarter century of experience. --- > It is my opinion that you should not feel it's unusual that you don't > "get" that stuff even though you are "a computer professional". ... > The only reason *I* see the difference is because I do both...otherwise > I'd probably not get it either. -------- Reply: Well! I guess he told you! Too funny...

14 years, 4 months

Cromemco FDC

by dm561＠torfree.net

----------------------- Original Message: Date: Thu, 5 Jan 2012 13:38:16 -0000 From: "James Attfield" <james at attfield.co.uk> Date: Sat, 31 Dec 2011 10:02:11 -0800 (PST) From: Jerry Wright <g-wright at att.net> Subject: Re: Looking for 8080/Z80 BASIC >> Josh, I would love to get your 64FDC for my Cromemco 68020 machine that >> is missing one. I have 16 FDC and other Croemeco Z-80 Boards to go along >> with it. > Which model 68020 Cromemco is it? I might be able to find a spare 64FDC... > mike Long shot, but if you have another or Josh doesn't take it I'd love to give it a home. I have a complete Cromemco board set here in an IMS-5000 chassis and a pair of TM848's but have consistently failed to get the 16-FDC to talk to them reliably. I'd dearly love to get a 64-FDC for it to go with the ZPU and/or an STD hard disk controller (or an IMI drive to go with the WDI-II controller I have). Anyone? FYI the ROM on the 'FDC flips in and out the entire top 32K bank. During boot RDOS ensures that the top 32K flips in and RDOS then flips out giving a clean 64K map. All done through port 40H. Jim -----------------------Reply: Hi Jim, Are you the same Jim I'm corresponding with elsewhere about a broken 256/1024KZ? If so, you and I can discuss the 64FDC off-list; I haven't heard from Jerry. I do have some IMI drives, both the 8" 11MB and the 5" 5MB and 20MB units, but I'm pretty sure at least some of them are non-functional.What size/capacity are you looking for? IMI drives were also used by Corvus; as a matter of fact the two companies ultimately merged. The IMI 20MB mechanism was also available with a normal ST412/506 interface card and used in XT clones etc., in case you have a defective drive with a good IMI board and can find one of those drives. m

14 years, 4 months

Cromemco FDC

by dm561＠torfree.net

----- Original Message: Date: Thu, 05 Jan 2012 10:10:08 -0500 From: "Bill Sudbrink" <wh.sudbrink at verizon.net> James Attfield wrote: > >> FYI the ROM on the 'FDC flips in and out the entire top 32K bank. > I just double checked the schematics and this is not correct. > The 16FDC feeds address lines 15-12 through a 74ls30 to do a > specific decode for a 4K address range, normally set to $C000-$CFFF. > If the high four address bits do not match, the card will not > respond. > Bill S. -------------------------------------------------- The 16FDC does indeed have a set of jumpers to select a 4kB block, normally at $C000, but the 64FDC that we were talking about only uses A15, i.e. the upper 32kB; also, the 64FDC's RDOS ROM is 8kB vs. the 16FDC's 4kB. In any case, the memory boards are usually configured to map out the upper 32kB.

14 years, 4 months

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