Stoll (Was: The KGB, the Computer, and Me

2015-12-28 Thread Fred Cisin
I have not seen that, but have the Stoll Book, Cuckoo's Egg. A friend of mine is central to this, and is in the book (though I've not seen him for 30 years...) On Mon, 28 Dec 2015, Rod Smallwood wrote: Stoll has a bit of a wesite.. He's an astronomer just like he said. Also he also says stay

Re: The KGB, the Computer, and Me

2015-12-28 Thread Fred Cisin
On Mon, 28 Dec 2015, Rod Smallwood wrote: I love this guy! I bet he has a time travelling DeLorean in his garage At one point, he mentioned wanting to create a punched card driven webserver. For a while, he had a show on MSNBC. He wanted to shoot an episode in my office, due to the piles of

Re: 10 forgotten wonders of 1980s homes

2015-12-29 Thread Fred Cisin
On Tue, 29 Dec 2015, Ian S. King wrote: After the success of "That 70s Show", clueless producers decided to try moving forward a decade to "That '80s Show", which was a flop. I have a theory as to why it failed: the '80s were just too pathetic to parody. The '60s were too much for TV. The '90s

Copper (Was: 10 forgotten wonders of 1980s homes

2015-12-31 Thread Fred Cisin
On Thu, 31 Dec 2015, Geoffrey Oltmans wrote: The death of copper has been preached since I started into this business. Almost half a century ago, there were attempts to use aluminium instead of copper for house wiring. It did not go well. "After having dug to a depth of 1,000 meters last y

Re: [SPOILERS] Re: Targeting Computers in X wing fighters.

2015-12-31 Thread Fred Cisin
On Thu, 31 Dec 2015, jwsmobile wrote: Some people are waiting for the nuts to quit filing theaters. Please don't discuss w/o a warning as Al placed on the line (or if someone else did, I've not gotten that message). It is ill mannered at best. OK But, I probably won't see it for a few years,

Re: Happy New Year

2015-12-31 Thread Fred Cisin
On Thu, 31 Dec 2015, Ian S. King wrote: I'll put it another way: praises to Jay for putting up with this bunch of nut-jobs (self included). :-) Happy New Year to all, may you find a PDP-6 in your neighbor's barn. -- Ian May the computer that your neighbor brings to you, have a full set of s

Re: New Commodore 64 is Finally Here--For Real! PC MAG Snip

2016-01-01 Thread Fred Cisin
On Fri, 1 Jan 2016, Chuck Guzis wrote: I've seen this on digicams with CF cards. 2GB is the "official" limit to FAT16 filesystems. However, XP and later can format 4GB cards to FAT16 as well--and it seems to work very well with my older cameras, which do not understand FAT32. While, at the

Re: New Commodore 64 is Finally Here--For Real! PC MAG Snip

2016-01-01 Thread Fred Cisin
On Fri, 1 Jan 2016, Chuck Guzis wrote: If that 128GB SD card is such a bother, I'll trade a 2MB CF card for it--it shouldn't take very long for a directory listing... :) I'll raise that 2MB offer to a 2GB card! (is Micro-SD + adapter OK?) When it seemed likely that 2G would be going away, I st

Re: New Commodore 64 is Finally Here--For Real! PC MAG Snip

2016-01-01 Thread Fred Cisin
While, at the time, 2G seemed "infinite", even then, I was amused at the 2G limitation being due to the use of a SIGNED 32 bit number. The size can be anywhere from -2147483648 to 2147483647. By switching to an UNSIGNED 32, NT and the like made the limit 4G. On Fri, 1 Jan 2016, Jim Brain wrot

Re: New Commodore 64 is Finally Here--For Real! PC MAG Snip

2016-01-01 Thread Fred Cisin
On Fri, 1 Jan 2016, Chuck Guzis wrote: What's funny is that in the old pre MS-DOS 3.3 days, one of the ways to trick DOS into supporting larger volumes was to increase the (apparent) sector size with code to block up 512 byte sectors into larger (1024, 2048, etc.) apparent ones--and a few DOS p

Re: Floppy recovery

2016-01-05 Thread Fred Cisin
On Tue, 5 Jan 2016, Chuck Guzis wrote: Guess who Drivesavers sent the floppy images to for recovery? (Modesty forbids). But we've had a working relationship with them for a long time. Can you enlighten us as to what sort of system/disk format it was?

Re: Floppy recovery

2016-01-05 Thread Fred Cisin
On Tue, 5 Jan 2016, et...@757.org wrote: If a disk has all zeros written to it, as far as I know from what I've read there is no hope of recovering the data. There were rumors that the government could do it based on really fine detection of magnetic levels or something -- but it was rumor. The

Re: Conservation issue - shrink-wrapped manual

2016-01-06 Thread Fred Cisin
On Wed, 6 Jan 2016, Evan Koblentz wrote: You can always put the guide into a Zip-Lock bag or whatever. So I'd say open it. OTOH, if you want to SELL it, "original shrink wrap" provides an assurance to somebody who doesn't know you, that the contents are all there and undamaged - no pages miss

Re: Free HP 3000 Equipment for removal (Denver Craigslist)

2016-01-06 Thread Fred Cisin
Marc, this is a good reason for anyone to convert their old rec room into a machine room. Just make sure to paint the walls brown and fit wall-to-wall orange carpeting. ;) On Wed, 6 Jan 2016, ben wrote: But where do you get the 2016 Line Printer Calender? 2016 has the same days of the week to

Re: Floppy recovery

2016-01-07 Thread Fred Cisin
1) if the alignment of the head of the original recording and of the overwrite head are not a perfect match, then there can be some residual data somewhat off axis. On Thu, 7 Jan 2016, Christian Corti wrote: At a first thought I don't see how there can be residual data because there is the tun

Re: Floppy recovery

2016-01-07 Thread Fred Cisin
I've heard that there are "standards" for a number of overwrites, and what patterns to use, . . . On Thu, 7 Jan 2016, Chuck Guzis wrote: The paper that got the most notice was from Peter Gutmann from the early 90s. https://www.cs.auckland.ac.nz/~pgut001/pubs/secure_del.html Thank you! That

Re: Secure disk destruction [was Re: Floppy recovery]

2016-01-07 Thread Fred Cisin
On Thu, 7 Jan 2016, drlegendre . wrote: What's wrong with the "disassemble and rend with heavy hammer" approach? Doesn't that render the platters un-readable, if done with sufficient ardor? Bending the platters will keep them from turning and being usable in the drive, but does NOT prevent var

Re: Secure disk destruction [was Re: Floppy recovery]

2016-01-08 Thread Fred Cisin
On Thu, 7 Jan 2016, Charles Anthony wrote: Putting it a crate with a few hundred other drives... Label the one next to yours: CONFIDENTIAL : TOP SECRET or label the one next to yours: TAX RECEIPTS, and label your drive: REAL TAX RECEIPTS If you were to label your enemy's drive ISIS, CHILD POR

Re: Building a PC - then & now

2016-01-14 Thread Fred Cisin
Howzbout an updated version similar to Cardiac? Or, a DIY kit for an Antikythera?

Re: Archiving CP/M 2.2 Source Code Programs to a PC (Fat or NTFS media)

2016-01-15 Thread Fred Cisin
On Fri, 15 Jan 2016, Robo58 wrote: Hi Folks, I have many diskettes worth of CP/M 2.2 assembler source code and programs that I'd like to archive in the PC environment. I'm worried that my media is degrading and I want to move it before it's too late. The media is mostly 8" SD or DD, there are al

RE: Archiving CP/M 2.2 Source Code Programs to a PC (Fat or NTFS media)

2016-01-15 Thread Fred Cisin
On Fri, 15 Jan 2016, Robo58 wrote: I'm a little rusty on the older PC's. So when you say that 386 to PIII's could read an 8" floppy, would those PC's have SD floppy controllers? Some (such as 37c65 based FDCs) do, some don't. Dave Dunfield made a test program, to help identify them. If th

RE: Archiving CP/M 2.2 Source Code Programs to a PC (Fat or NTFS media)

2016-01-15 Thread Fred Cisin
On Fri, 15 Jan 2016, Steven Hirsch wrote: The simplest approach (as suggested by Fred) would be to use 22Disk to simply read files out of the CP/M filesystem. If you are dealing with a non-standard format that is not in the default database, you would need to purchase a registered copy that ha

Re: My last word on building computers!

2016-01-15 Thread Fred Cisin
A guy in France built a 1/3 scale Ferarri roadster. He made EVERYTHING himself. Dashboard instruments, tires, ignition coils and spark plugs, and on and on. I saw it at the NAMES show in 2004, I think. Totally awesome. And, it took him 12 years! On Fri, 15 Jan 2016, ben wrote: Smaller cars

Re: Data Recovery Services

2016-01-20 Thread Fred Cisin
On Wed, 20 Jan 2016, JC White wrote: I need to recover some files from a SCSI drive that failed over a decade ago.?? Are there data recovery services that can determine if the files on the drive can be recovered or can actually do such a recovery??? Now that I think about it, I recently also ha

Re: Data Recovery Services

2016-01-20 Thread Fred Cisin
If the problem is merely corruption of the file system, but the hardware is still working well, then the repairs could be almost trivial.

NEC 8201a

2016-01-24 Thread Fred Cisin
Anyone still messing with the Kyocera machines? (Radio Shack Model 100, NEC PC-8201A, and a few others were part of the same series made by Kyocera (Kyoto Ceramics)) Somebody just returned one that I loaned out about 30 years ago. Also the N82 BASIC manual, which gives memory maps, etc. for it.

RE: Substituting DSHD for DSDD disks (or DS2D if you prefer)

2016-01-26 Thread Fred Cisin
On Tue, 26 Jan 2016, CuriousMarc wrote: You make me feel lucky. I have all 3 (almost, I have the low density HP 9121 rather than an HD 9122 so I can use it on my HP 85)... Haven't restored or even powered up the recently acquired HP 9895 yet, but the HP 82901A and the HP 9121D now work great. Q

RE: Substituting DSHD for DSDD disks (or DS2D if you prefer)

2016-01-26 Thread Fred Cisin
82901A and the HP 9121D now work great. Quite low capacity (270k?) due to the weird LIF formatting, formats 35 tracks but uses only 33, out of the 40. I wonder why. Partially because the original 5.25" drives (Shugart SA400) were 35 track (#0 - #34), not 40. I don't even remember, . . . Does

Re: What to Do with a PS/2?

2016-01-27 Thread Fred Cisin
Correct me if I'm remembering incorrectly (probably am), but wasn't NT a descendent of DEC VMS? On Wed, 27 Jan 2016, Mouse wrote: As I understand it - an important caveat here - Windows NT was to some extent a conceptual descendent of VMS, but that was more because the same person was instrument

Re: Can Windows 98SE run on an Intel I7 with SATA hard drives?

2016-01-28 Thread Fred Cisin
On Thu, 28 Jan 2016, Liam Proven wrote: Exactly. I think it can't handle >512MB and it *definitely* can't do multicore. It's pointless. It's buying a new car and putting roller-skate wheels on it... because you're used to skates. "Modern" car wheels look like wagon wheels to me. Want some ska

Re: Can Windows 98SE run on an Intel I7 with SATA gard drives?

2016-01-28 Thread Fred Cisin
On Thu, 28 Jan 2016, Noel Chiappa wrote: My approach to keeping my 98SE machines running is _lots_ of spares of all kinds. They were easy and cheap to acquire a while back - they're a lot harder to find now, those machines are all totally obsolete. FPUIB (Free Pick Up In Berkeley) no shipping

Re: AIX for IBM system 370

2016-02-01 Thread Fred Cisin
On Mon, 1 Feb 2016, devin davison wrote: What machine would you recommend for the Linux route. The idea being to run the oldest machine possible. I was looking at AIX because it ran on one of the oldest ibm machines i could find. Howzbout Xenix? Could run it on a 286 AT. Maybe even on an XT? A

Re: .IMD diskette image file recovery

2016-02-04 Thread Fred Cisin
> Is there a utility that will read .IMD diskette archive files and > recover the data? "Data"??!? Well, you already have the DATA, every last bit. Maybe what you want is the INFORMATION, in the form of the FILES. All too often, people will use "data" to describe the contents, which could be a

Re: Calibration of 8" floppy drive?

2016-02-06 Thread Fred Cisin
Are there any good alternative solutions I can do to replace it? I'm sure I don't want the plastic touching the disk media. On Sat, 6 Feb 2016, Chuck Guzis wrote: Got any chums in the musical instrument repair business? Wind instruments (woodwind and brass) use a fair amount of very high-qualit

Re: 386 upgrade board

2016-02-07 Thread Fred Cisin
On Sun, 7 Feb 2016, Joe Giliberti wrote: Greetings! I have a Televideo luggable that I have been playing with. Its a 10MHz 286 with a meg of RAM, 2 360k drives and four expansion slots. I've been trying to figure out how capable I can make this machine for the hell of it. Did anyone make an upgra

Re: 6502 CPUs

2016-02-08 Thread Fred Cisin
In a thousand years, it is revealed that Bender has a 6502!

Re: Programming

2016-02-09 Thread Fred Cisin
Yes, its faceplate reads 'PDP-11', not 'PDP-11/20'. I am half sad. My 11/20 faceplate reads 11/20 (I'm only half-sad And I actually have *two* 11/20's. Both read "pdp11/20" on the faceplate. Q: Do they read PDP-11 PDP-11/20 pdp11/20 11/20 If we're going to get picky about this, then let's no

Non-binding-breaking Book scanners (Was: Looking for PDP handbook

2016-02-19 Thread Fred Cisin
http://www.diybookscanner.org/ :) Ooh, that's pretty cool. Yes, but, . . . I've participated in building a few similar devices. Instead of the two sides MEETING in a V, there should be an open area right at the spine to accomodate the greater thickness of the spine itself. Having the two sid

Re: Non-binding-breaking Book scanners (Was: Looking for PDP handbook

2016-02-19 Thread Fred Cisin
http://www.diybookscanner.org/ :) Ooh, that's pretty cool. Yes, but, . . . I've participated in building a few similar devices. So download the CAD files and get cracking. If that's the way that you WANT to do it. It's mostly plywood, framing, and some pipe work. We did one with slotted angle

Re: Non-binding-breaking Book scanners (Was: Looking for PDP handbook

2016-02-19 Thread Fred Cisin
On Fri, 19 Feb 2016, geneb wrote: *sighs theatrically and shuffles off Fred's lawn* well, if you had brought beer, . . .

Re: Non-binding-breaking Book scanners (Was: Looking for PDP handbook

2016-02-19 Thread Fred Cisin
On Fri, 19 Feb 2016, Adrian Stoness wrote: Why does someone just take a photo with their camera Why does someone just take a photo with their camera? Because they might not need exceptionally high quality, and not planning to do enough pages to justify building a rig for high quality and prod

RE: PDP-11/20 vd one that just says pdp 11 what are the date differences?? OEM?

2016-02-22 Thread Fred Cisin
On Mon, 22 Feb 2016, Paul Birkel wrote: I wonder how long it took them to "figure it out"? I seems that the family-plan dates to April 1969. When everybody realized and accepted that there would be more than one sub-model, and decided that it might be handy to be able to tell them apart. Th

Re: PDP-11/20 vd one that just says pdp 11 what are the date differences?? OEM?

2016-02-22 Thread Fred Cisin
> reason to declare the "Great war"/"World War" to be "number ONE". > So, the use of any sort of "first" name doesn't occur until "second" > is expected. On Mon, 22 Feb 2016, couryho...@aol.com wrote: Or WW1 was also referred to as the "war to end all wars" It was certainly INCONCEIVABLE

Re: Copying from a floppy to an SD card?

2016-02-22 Thread Fred Cisin
On Mon, 22 Feb 2016, Mike wrote: Is there a way to copy a disk from a commodore floppy drive to a SD card if so please enplane how it is done You need a machine that supports both formats. Either add an SD card to a Commodore, or do appropriate special cabling and software to read the commod

Re: The AT&T 3B2 is still proprietary

2016-02-23 Thread Fred Cisin
Can someone explain this list reply to me what what it has to do with AT&T minis? On Tue, 23 Feb 2016, Alan Hightower wrote: 1) Mike lives in Colorado, Washington, Oregon, or Alaska 2) Mike fell off his Honda ATC 3-wheeler and hit is head really hard 3) Spam bot that has gone self-aware and off

Re: Xenosoft in New Haven CT?

2016-02-25 Thread Fred Cisin
On Thu, 25 Feb 2016, Dave Woyciesjes wrote: A friend asked me if I had heard of a company called Xenosoft Now why does that sound familiar, in regards to this bunch here? Her daughter was contacted by a headhunter about a clerk position in New Haven CT A lot of people have infringed up

RE: Xenosoft in New Haven CT?

2016-02-25 Thread Fred Cisin
A lot of people have infringed upon my trademark. "Unfortunately, due to some major projects, we are temporarily suspending retail sales. Please be patient if we are slower than usual in response to inquiries during these projects. We expect to resume retail sales soon." On Thu, 25 Feb 2016, Al

Re: Keys - Non-Ace was RE: ACE Key codes (xx2247 etc.)

2016-02-25 Thread Fred Cisin
On Thu, 25 Feb 2016, Jay West wrote: They must have some "internal representation" of a key such that a key (any key, any size, including car keys that are those "grooves") can be stored "digitally" and downloaded. I wonder if similar art exists such that we could store "whatever is necessary" to

RE: ACE Key codes (xx2247 etc.)

2016-02-25 Thread Fred Cisin
On Thu, 25 Feb 2016, Jay West wrote: Old thread - I know that there was lots of talk about the DEC PDP XX2247 key. I don't think I've ever seen/heard any discussion of memorializing others (non-dec) and we should :) Date: Mon, 25 Apr 2011 10:22:32 -0400 From: Ethan Dicks Subject: Re:

RE: Keys - Non-Ace was RE: ACE Key codes (xx2247 etc.)

2016-02-25 Thread Fred Cisin
Some municipalities have restrictions on it, ranging from no restrictions to outright ban, or requiring the locksmith to keep on file the identity of who requested a key, and/or "proof" of ownership of the lock (physically bringing it in, letter on company letterhead, etc.) On Thu, 25 Feb 2016,

Re: 'motherboard' etymology

2016-02-29 Thread Fred Cisin
On Mon, 29 Feb 2016, John Willis wrote: FWIW, the IBM term for "motherboard" was "planar", at least in the era of the PC, PC/XT, PC/AT, etc. The first computer to which I had access was my father's 5150 in approximately 1984; I remember the machine came with dual floppy drives and a 64K system

Re: 'motherboard' etymology

2016-02-29 Thread Fred Cisin
On Mon, 29 Feb 2016, Chuck Guzis wrote: Didn't Intel use what it called "daugherboards" on some of its line of Multibus products? That is, the "offspring" products plugged into the Multibus card, not the backplane. Am I remembering correctly? And, could it be that SOME use of the word "mothe

RE: ACE Key codes (xx2247 etc.)

2016-03-05 Thread Fred Cisin
On Sat, 5 Mar 2016, Jay West wrote: We're doing something a little more expansive than that. Fred did a great job of providing detailed fields which the web developer has looked at. If anyone has additional fields, let me know. Well, as a hierarchical or relational database, the primary inform

RE: ACE Key codes (xx2247 etc.)

2016-03-05 Thread Fred Cisin
On Sat, 5 Mar 2016, Fred Cisin wrote: always use even number depths on some cuts and odd numbers on others. Such rules are necessary in designing a new key, but irrelevant for making a duplicate or replacement) CORRECTION: NOT irrelevant. If you have a cut that seems to be between a 3 and

OT: lenses (Was: Front Panels - PDP8 and PDP 11

2016-03-09 Thread Fred Cisin
posters! The lens was a Goerz Red Dot Artar and the sharpest flat field lens On Wed, 9 Mar 2016, Rod Smallwood wrote: Thanks,, Our cam was fitted with a high grade Ziess lens that cost a fortune even then, Zeiss made a lot of lenses, some of which were great. Goerz made a few of the

Re: OT: lenses (Was: Front Panels - PDP8 and PDP 11

2016-03-10 Thread Fred Cisin
If anyone knows of a good digital body that will adapt to RTS optics, please let me know. On Thu, 10 Mar 2016, Zane Healy wrote: Take a look at the Sony a7 series of bodies, people are using RTS lenses on them. You can put almost anything on them, and they’re a full frame sensor. I know that

Re: OT: lenses (Was: Front Panels - PDP8 and PDP 11

2016-03-10 Thread Fred Cisin
On Thu, 10 Mar 2016, Fred Cisin wrote: You might also get a little vignetting from any very short focal length lens that isn't retro-focus, since the sensors are expecting all light to be coming in perpendicularly, not from a optic node very close to the center of the lens. THAT cou

Re: OT: lenses (Was: Front Panels - PDP8 and PDP 11

2016-03-10 Thread Fred Cisin
(Note: the only digital that can handle a D-mount is the Pentax-Q. It claims to be the smallest interchangeable lens digital - I need to get a letter writing campaign going to convince Minox to redo their Minox-Leica as a screw-mount using C or D mount!) On Thu, 10 Mar 2016, Zane Healy wrote:

Re: Olivetti 3MB ST506-interface drive?

2016-03-13 Thread Fred Cisin
Is that "3MB" FORMATTED, or UNFORMATTED capacity? "10MB" (ST412) was 12MB unformatted, with 306 cylinders and 4 heads. "5MB" (ST406) was 6MB unformatted, with 306 cylinders and 2 heads. or was it (St506?) 153 cylinders with 4 heads? In any case, using half as many heads/surfaces would create

Re: Olivetti 3MB ST506-interface drive?

2016-03-13 Thread Fred Cisin
On Mon, 14 Mar 2016, dwight wrote: I don't recall how many heads a ST506 had. I have one on my NC4000, home brew, machine. I recall picking the drives up at garage sales because DOS no longer supported them, only being 5Meg. ftp://ftp.seagate.com/pub/techsuppt/mfm/st506.txt ftp://ftp.seagate.co

Re: OKI if800 CP/M

2016-03-15 Thread Fred Cisin
Ah, so it has, under both the BMC and the OKI names. I was going to try it with imgdisk and 22disk eventually, but I was in a KF experimentation phase. On Tue, 15 Mar 2016, Chuck Guzis wrote: A plain old PC with legacy FDC will work just fine. A little mouse tickling my memory indicates that th

RE: Olivetti M24 Mounting Bushes for Bus Converter

2016-03-25 Thread Fred Cisin
I looked up rivnuts and they certainly look similar. They are definitely not standoffs though. I shall look closer at rivnuts. also look at nutserts. Riv-nuts are pop-rivets with a threaded center. Usable through sheet metal, and into blind holes (very carefully) Nutserts call for drilling a

Re: Olivetti M24 Mounting Bushes for Bus Converter

2016-03-25 Thread Fred Cisin
___ From: cctalk on behalf of Robert Jarratt Sent: Friday, March 25, 2016 2:25 PM To: 'General Discussion: On-Topic and Off-Topic Posts' Subject: RE: Olivetti M24 Mounting Bushes for Bus Converter -Original Message- From: cctalk [mailto:cctalk-boun...@classiccmp.org] On B

Re: WinWorld

2016-03-30 Thread Fred Cisin
They define "abandonware" as: "In order for a piece of software to be abandonware, it must, as a general guideline: Be over 7 years old. Be out of support by the manufacturer. Be mostly out of use by the general populace (abandoned)" So, if you are a software author, if you won't SUPPORT stuff

Re: WinWorld

2016-03-30 Thread Fred Cisin
So, if you are a software author, if you won't SUPPORT stuff that you did over 7 years ago, they believe that they have a right to distribute it? On Wed, 30 Mar 2016, Liam Proven wrote: No, not the same thing. I think the more important question is/are: Will the original author still *sell* it t

Re: "Abandonware" and copyright [was Re: WinWorld]

2016-03-30 Thread Fred Cisin
On Wed, 30 Mar 2016, Mouse wrote: As I understand the term, the rights owner has to be nonexistent or to have proved unidentifiable or uncontactable (re which see below). The case where the owner clearly exists but demonstrably does not care about the software is, to my mind, a grey area. Disu

Re: AT&T 3B2 floppy format

2016-04-02 Thread Fred Cisin
On Sat, 2 Apr 2016, Seth Morabito wrote: After doing more experimentation this morning, I've discovered that the data mode I should have been using was 250kbps MFM, NOT 300kbps! After changing ImageDisk to write 250kbps (and ensuring that the 300RPM "I" jumper was strapped on the FD55-GV), the im

Re: C & undefined behaviour - was Re: tumble under BSD

2016-04-03 Thread Fred Cisin
I'd say, for running text, wrap somewhere before 80 characters per line (preferably before about 78, since some programs lose a column or two on display - personally, I wrap at column 72). I'm sure others will differ in various details, but I suspect most will probably be somewhere close to that.

Re: Why do good floppy disks go bad?

2016-04-06 Thread Fred Cisin
Wear happens. Particularly on directory tracks, or where you encounter the snake in Adventure. But, that doesn't account for the loss of data over time. Entropy: Could the rust on the cookie be de-oxidizing, and turning back into non-oxidized ferrous compounds? :-) How long were they supp

Re: 8-bit Computer TV Channel Use

2015-05-19 Thread Fred Cisin
On Tue, 19 May 2015, Mark J. Blair wrote: My old Color Computer used US VHF channels 3 or 4 for NTSC video. I found a reference to the ZX Spectrum using UK UHF channel 35 for PAL video. What other channels were used all over the world by 8-bit home computers (and video games, too, I suppose), a

Re: 8-bit Computer TV Channel Use

2015-05-19 Thread Fred Cisin
On Tue, 19 May 2015, Mark J. Blair wrote: Did anything use US VHF channel 2? I can't recall whether I have seen that used before, but I have a feeling that I might have. Certainly POSSIBLE. But channel 2 tends to be occupied in MOST places. 3 was used by VCRs, etc, and 3&4 switchable just in c

Re: 8-bit Computer TV Channel Use

2015-05-19 Thread Fred Cisin
The NTSC Atari 2600 switches between 2 & 3. On Tue, 19 May 2015, Kyle Owen wrote: As do the TRS-80 CoCos, if I'm not mistaken. 3/4 for the ones intended for USA. Other options might have been available for export models.

RE: 8-bit Computer TV Channel Use

2015-05-19 Thread Fred Cisin
On Tue, 19 May 2015, tony duell wrote: Most, if not, all home computers sold to connect to TVs in the UK were set to use our UHF channel 36. In San Francisco bay area, including Silicon Valley, there was a very strong independent station on 36. On 32? there was an insane? speed-freak? preacher

RE: 8-bit Computer TV Channel Use

2015-05-19 Thread Fred Cisin
But those two strong signals made it easier to find the 34 of the Sup'R'ModII Note that in those days, TVs had KNOBS! VHF had individual click detents, with a "fine tuning" analog knob that would take you almost to what you wanted to tune. UHF didn't even have detents, with a continuous analog

Re: the 2 old original IBM machines

2015-05-20 Thread Fred Cisin
On Wed, 20 May 2015, Electronics Plus wrote: 8088 computers, one has 2 floppies, 1 has 1 floppy and 1 hdd. Both fully tested and functional. No keyboards now, but there is an original IBM mono monitor, and the printer. I do NOT want to ship; these will not survive UPS very well. We are about 1 h

Re: 8-bit Computer TV Channel Use

2015-05-22 Thread Fred Cisin
On Fri, 22 May 2015, Mark J. Blair wrote: I've ordered a $15 composite to HDMI converter from Amazon to try out for myself with my Apple IIe and IIc. I'd also like to try out my Color Computers with a modern monitor to see if the color aliasing used by some games can be reproduced. I don't have

Re: 8-bit Computer TV Channel Use

2015-05-22 Thread Fred Cisin
On Fri, 22 May 2015, Chris Osborn wrote: Heh, I have a few already. :-) I’ve even got one of those funny looking ones that has knobs on it. With VHF & UHF dials. And fine tuning. And only screw terminals on the back, none of those fancy RCA/phono jack connectors on it. A little over half a ce

Re: 8-bit Computer TV Channel Use

2015-05-23 Thread Fred Cisin
On Sat, 23 May 2015, Mark J. Blair wrote: Assuming that I don't find an off-the-shelf converter that Just Works for our poorly-behaving vintage computer video outputs, what I have in mind is this: A converter that is specifically designed to emulate the response of an 80's TV or 80's composite

Re: Testing floppy drives

2015-05-28 Thread Fred Cisin
On Thu, 28 May 2015, Alexandre Souza wrote: Howdy guys, greetings (as always) from Brazil! :o) I'm in a repairing spree! Got 5 (!) CP-500 (Brazilian TRS-80/III clone) to repair. All of them with single/double sided floppy drives, and the whole nine yards. Since it is not pratical to test

Re: Bitcoining on a 1401

2015-05-28 Thread Fred Cisin
On Thu, 28 May 2015, jwsmobile wrote: I saw this article over on the Hercules group, and was amused. http://www.righto.com/2015/05/bitcoin-mining-on-55-year-old-ibm-1401.html Is the bitcoin output anywhere close to enough to pay for the costs of running a 1401?

Re: Bitcoining on a 1401

2015-05-28 Thread Fred Cisin
Is the bitcoin output anywhere close to enough to pay for the costs of running a 1401? On Thu, 28 May 2015, emanuel stiebler wrote: Probably not. Quoting the web page: " ... but so slowly it would take more than the lifetime of the universe to successfully mine a block " ;-) Excellent! Does

Re: Blue tape retainers

2015-06-09 Thread Fred Cisin
It's one of those tape collar-seals breaking spontaneously, at which point the hung reel falls to the floor and takes off across the room, generally unwinding the tape as it goes. If it is generally UNwinding the tape as it goes, the reason is exactly the same as why buttered toast always falls

Re: PDP-8/S

2015-06-12 Thread Fred Cisin
I know of 17 PDP-8/S systems, including four at the RICM. Not everyone wants their collections to be public information but: If somebody were to try to make a "complete" list, it would make sense to provide variable levels of anonymity, such as name but not contact info, state but no name, em

Re: PDP-8/S

2015-06-12 Thread Fred Cisin
On Wed, 10 Jun 2015, couryho...@aol.com wrote: Fred yes all valid. if we are to put them in the registry though we have to be sure that have one if they go nameless. like if we get a response like: my name is rick I have s/n 2 OK, there would need to be SOME contact bac

TRS80, other than model 1

2015-06-13 Thread Fred Cisin
something totally off topic from the 8S machines there are some trs80 radio shack things that are huge like the MODEL 2 was but these were later and had a 3 number designator ? there are many as I remember one will be kept another kept for offsite displays but the others will gooo

Re: PDP-8/S

2015-06-13 Thread Fred Cisin
On Sat, 13 Jun 2015, John Wilson wrote: Re theft: yeah there's no way a random house burglar would bother Are the middle of the night, in the rain, in the gutter, catalytic converter thefts actually worth it? Besides theft issues, there can be additional reasons for anonymity. consider the

Re: TRS80, other than model 1

2015-06-13 Thread Fred Cisin
Soon, the model 4 was made available - same basic machine with 80x24 video (V 51x16), ooops. 64 characters per line on the 1. Maybe it was Osborne 1 with 51?

RE: TRS80, other than model 1

2015-06-13 Thread Fred Cisin
On Sat, 13 Jun 2015, tony duell wrote: Trivia question : What feature was present on all disk based M1s (in fact any M1 with an expansion interface) but not on any M3 or M4 machines? composite video out. I used that, a LOT for classroom lectures, etc. 1771 FDC dual cassette port? or unreliabi

RE: using new technology on old machines. Was: PDP-12 Restoration at the RICM

2015-06-16 Thread Fred Cisin
On Tue, 16 Jun 2015, tony duell wrote: Actually, IIRC a USB A male->female cable violates the spec... The spec forbids extending the cable further? Or should the spec forbid absolutely any cable, with absolutely any USB connector on either end?

RE: using new technology on old machines

2015-06-16 Thread Fred Cisin
On Tue, 16 Jun 2015, tony duell wrote: Quite probably, but the modern mains-side switcher is more troublesome and a lot less pleasant to repair. I think I'll stick with the room-heater in my 11's :-) Well, you could use a switcher, paralleled to the mains with a heater. Just as you can use a C

Re: Front Panels Personal Update

2015-06-18 Thread Fred Cisin
Also "typing" on a phone sucks. Phoning on a "phone" sucks too. "I have always wished for my computer to be as easy to use as my telephone; my wish has come true because I can no longer figure out how to use my telephone." - Bjarne Stroustrup

Re: [RANT] EX-PARROT (Was:False Beeprog. AGAIN.

2015-06-23 Thread Fred Cisin
We have now had conflicting "definitive" statements ranging from "the software simply displays a message and refuses to run", to "the software irreparably damages the device" But unless I misunderstood things, the software merely does a check if the hardware looks sane, and if not it displays

Re: [RANT]False Beeprog. AGAIN.

2015-06-23 Thread Fred Cisin
It's dead, pushing up daisies, it's run down the curtain to the Choir Invisible. IT'S BRICKED. Man, I LOLed with this "pushing up daisies" :D It is most assuredly NOT pining for the fjords! :) It is a relatively common euphemism, and is explicitly included in the classic Monty Python "Dead

Re: [RANT] EX-PARROT (Was:False Beeprog. AGAIN.

2015-06-23 Thread Fred Cisin
It could be due to an unforseen situation not considered by the designers. Several years ago a friend of mine bricked at CAR (BMW I believe---it was a high end German car in any case). He was updating the firmware on the car when the power cut out, leaving the firmware in an inconsistent state.

Re: [RANT] EX-PARROT (Was:False Beeprog. AGAIN.

2015-06-23 Thread Fred Cisin
Why are such incompetent designers still employed in the industry? On Tue, 23 Jun 2015, Alexandre Souza wrote: Eh...this is INTENDED by the company. They want to fry your clone programmer, so you can buy an original one... :o\ The retaliatory actions, certainly. The incompetent designers t

Re: organizing a trip to Cuba

2015-06-24 Thread Fred Cisin
On Wed, 24 Jun 2015, Rod Smallwood wrote: I was at DEC when much of this took place . The big concern was not so much the copying but the USSR just buying DEC product on the open market. They would set up a front company, sign up as an oem, pay their bills on time and carry on shipping. It took

Re: Imaging TRS-80/III single-sided disks

2015-06-25 Thread Fred Cisin
On Thu, 25 Jun 2015, Alexandre Souza wrote: Dear sirs, you'll have to settle for us. Imagedisk is my savior, and I image all kind of disks I know with it :) But now I got a pair of TRS-80 model III single-sided disks. How do I image it using imagedisk? Same as every other disk that you

Re: Imaging TRS-80/III single-sided disks

2015-06-25 Thread Fred Cisin
A few more gotchas to be aware of: Some of the operating systems on TRS-80 started the sector numbering at 0. Therefore, depending on which operating systems were used, you could have sectors numbered 0 - 17 , or 1 - 18. That can be confusing if your PC can't read the first sector, but tells

Re: Advice Requested on Life Expectancy of a PC Windows System

2015-06-30 Thread Fred Cisin
On Tue, 30 Jun 2015, Dave Woyciesjes wrote: I don't think this qualifies as answers persay, but more just data points really... I have successfully installed & run Win7 x86 & x64 on Dell Latitude D620, D630, D820 & D830. Not sure on the age, but they gotta be getting on to around 7 years. The

RE: Advice Requested on Life Expectancy of a PC Windows System

2015-06-30 Thread Fred Cisin
Why not??!? Why do the experts advocate not using something that had been working? (Windows XP) On Tue, 30 Jun 2015, Dave G4UGM wrote: Because the base OS and Applications no longer supports current internet standards ? Oh, OK. I didn't realize that this machine wasn't connecting to the intern

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