- vcf-midatlantic - lists.vcfed.org

Re: [vcf-midatlantic] Looking for some knowledgeable with the Harvard Mark I
by Brian L. Stuart 09 Oct '20

09 Oct '20

I studied it some back in college when I stumbled across the manual for it in our library. But that's been quite some time. So my memory is bound to be rusty at best. However, I have recently gotten a reprint copy of the manual and would be happy to help out if you can't find anyone more suitable. BLS On Friday, October 9, 2020, 12:48:07 PM EDT, W. Bryan Caudle via vcf-midatlantic <vcf-midatlantic(a)lists.vcfed.org> wrote: Greetings! I hope everyone here is doing well. I was contacted recently by a gentleman from the University of Heidelberg who is doing research on the IBM ASCC, otherwise known as Harvard Mark I. Specifically he is looking for understanding of its theory of operation and how the accumulators are used in calculations. While I have some general knowledge and there are some resources online, he was hoping to connect with someone with more extensive knowledge of the machine. If anyone here would be interested in talking with him, please let me know and I will introduce you, and feel free to share this with your network(s) if you feel you know someone who might be able to help. Thanks!

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Looking for some knowledgeable with the Harvard Mark I
by W. Bryan Caudle 09 Oct '20

09 Oct '20

Greetings! I hope everyone here is doing well. I was contacted recently by a gentleman from the University of Heidelberg who is doing research on the IBM ASCC, otherwise known as Harvard Mark I. Specifically he is looking for understanding of its theory of operation and how the accumulators are used in calculations. While I have some general knowledge and there are some resources online, he was hoping to connect with someone with more extensive knowledge of the machine. If anyone here would be interested in talking with him, please let me know and I will introduce you, and feel free to share this with your network(s) if you feel you know someone who might be able to help. Thanks!

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Re: [vcf-midatlantic] VCF East 2020 Kit Available!
by systems_glitch 09 Oct '20

09 Oct '20

Yeah, I wish I could've found a socket that worked for them -- I tried Mill-Max, Aries, and even some vintage QUIP-64 single wipe sockets a friend had (his business had used the R6501Q in the early 90s). All of them result in the outer pins getting bent on insertion, and pulled the other way if you try to remove the R6501Q. I have RFQs/sample requests out to a few other IC socket manufacturers who list QUIP-64 in their catalogs, but I'm not hopeful on those either, so we decided to just ship the kit with no sockets and tell folks to solder them in directly. What's the point in a socket if it messes up the chip legs going in *and* out, right?! Thanks, Jonathan On Wed, Oct 7, 2020 at 11:24 PM ajpierson1 via vcf-midatlantic < vcf-midatlantic(a)lists.vcfed.org> wrote: > > I look forward to the arrival of mine. Should be an interesting > experience soldering a quad inline package.-Alexander 'Z' Pierson Sent from > my pocket telephone > -------- Original message --------From: systems_glitch via vcf-midatlantic > <vcf-midatlantic(a)lists.vcfed.org> Date: 10/7/20 9:06 PM (GMT-05:00) To: > Kelly Leavitt <kelly(a)catcorner.org> Cc: systems_glitch < > systems.glitch(a)gmail.com>, vcf-midatlantic < > vcf-midatlantic(a)lists.vcfed.org> Subject: Re: [vcf-midatlantic] VCF East > 2020 Kit Available! Kelly, your order didn't quite make it onto today's > shipping list but willgo out tomorrow! Everyone who ordered before 1200 > Eastern time got theirsshipped out today.Hopefully we'll never have to do a > virtual workshop again, but if we do, Ithink I probably need to aim to > start shipping kits a month out, even if itmeans some folks put them > together beforehand.Thanks,JonathanOn Wed, Oct 7, 2020 at 3:29 PM Kelly > Leavitt <kelly(a)catcorner.org> wrote:> Just ordered mine. Probably won't > get it on time, but it looks like fun.>> Great job Jonathan.>> Kelly> > ------------------------------> *From:* vcf-midatlantic < > vcf-midatlantic-bounces(a)lists.vcfed.org> on> behalf of systems_glitch via > vcf-midatlantic <> vcf-midatlantic(a)lists.vcfed.org>> *Sent:* Monday, > October 5, 2020 9:58 PM> *To:* vcf-midatlantic < > vcf-midatlantic(a)lists.vcfed.org>> *Cc:* systems_glitch < > systems.glitch(a)gmail.com>> *Subject:* [vcf-midatlantic] VCF East 2020 Kit > Available!>> Tindie listing:>> > https://www.tindie.com/products/glitchwrks/glitch-works-r6501qr6511q-single…>> > forums thread:>> > http://www.vcfed.org/forum/showthread.php?73828-ANNOUNCE-VCF-East-2020-Kit-…>> > Nothing like getting something done right before the due date, eh? Work > has> been crazy and, fortunately or unfortunately, due to a possible > coronavirus> exposure we self-quarantined for the last two weeks and I was > able to> finally wrap up the user manual and assembly guide for the 2020 > VCF East> workshop kit!>> This year's kit was intended to fit in with the > overall 6502 theme of VCF> East 2020; however, I didn't want to do a 6502 > SBC since there's a lot of> good ones already available, and I felt like we > needed something more> unique. I happened to have some Rockwell R6501Q > "single-chip microcomputer"> processors, which are a 6502 core with some > changes in a funky "QUIP-64"> package -- if the plastic Motorla 68000 is > the "Texas cockroach," this is> the chip package version of a house > centipede :)>> The R6501Q is 6502 core but adds a few instructions, and has > I/O and> control registers in zero page. Stack also lives in zero page. > This> provides a little bit of a challenge in porting existing 6502 code. > The> EEPROMs included in the parts kit are loaded with the Enhanced Woz > monitor,> Steve Wozniak's 6502 monitor from the Apple 1 days. We're working > on ports> of EhBASIC and Tiny BASIC as well. They're not done yet -- > EhBASIC is going> to be a much larger project, but Tiny BASIC is very > nearly done and should> be available for testing this week. Both can be > loaded in over the serial> port without reprogramming the EEPROM.>> Anyway, > check out the Tindie listing for more information, links to source> code, > and a link to the PDF manual (which has schematics, of course). We're> > going to try and livestream something during Virtual VCF East this > weekend.>> Thanks,> Jonathan>

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VCF East 2020 Q & A
by Jeffrey Brace 08 Oct '20

08 Oct '20

Use this link to get to the Discord channel for asking questions during VCF East 2020: https://discord.gg/u4ybsBK We will ask questions live. If you don't want to use Discord, then you can send an e-mail to microphone(a)vcfed.org. -- ========================================= Jeff Brace Vice President & Board Member Vintage Computer Festival East Show-runner Vintage Computer Federation is a 501c3 charity http://www.vcfed.org/ jeffrey(a)vcfed.org cell: 732-759-1783

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C64 Versa64Cart
by Bill Degnan 08 Oct '20

08 Oct '20

Anyone in this group making custom Eproms containing D64 images stored on a Versa64Cart cartridge card? Or do you use the ICEPiC approach? I'd like to learn more about the best ways to build custom ROMs / carts Bill

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Re: [vcf-midatlantic] Free Livingston PortMaster 2 board
by RETRO Innovations 08 Oct '20

08 Oct '20

On 10/7/2020 5:11 PM, Jonathan Sturges via vcf-midatlantic wrote: Any pics? I have a PM in need of a board, but there's quite a few options for a PM2, I think -- RETRO Innovations, Contemporary Gear for Classic Systems www.go4retro.com store.go4retro.com

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VCF East 2020 Schedule for our virtual show on Oct. 10 & 11, 2020!
by Jeffrey Brace 07 Oct '20

07 Oct '20

Hello everyone, Sorry for the late notice about the schedule. I need to make sure that all the videos scheduled would indeed be finished. A lot of late submissions caused a lot of delay. I will be updating the website to reflect the schedule tomorrow. We will be creating Discord channels on the VCF server where people can ask questions for the presenters to answer. As a supplement we will be using microphone(a)vcfed.org for those not comfortable with Discord. More details to follow tomorrow when I have more time. Any questions, then please ask. Without further ado here is the schedule in PDF format: https://1drv.ms/b/s!AiK2kdsC-m5ChIYimfkQwLuISe0jKA?e=Yj1Qb2 Here is a pasted spreadsheet: Time Saturday (October 10, 2020) Presenter Time Sunday (October 11, 2020) Presenter 9:00 AM Ted Nelson's Vision Eric Rangel 9:00 AM Serial Terminals, New and Old Eric Siegel, Dave Hunter 9:15 AM The Interactive Atari Jason Moore 9:15 AM Flight Simulator Tanner Collins 9:30 AM Inside The Apple II Stephen Edwards 10:00 AM IRIX 2020 Kazuo Kuroi 10:15 AM The Linotype Machine Bob Roswell 10:30 AM Yamaha C1 Ethan O'Toole 10:45 AM 6502 Graphics Evolution Alex Jaccocks, Jonathan Sturges 11:00 AM King's Quest Marcus Mera 11:15 AM FujiNet Thomas Cherryholmes 11:30 AM The rise and fall of Sierra On-Line Ken Williams 12:00 PM History of Camp Evans Fred Carl 12:00 PM Commodore Assembly Jeff Salzman 12:45 PM C256 Foenix Stefany Allaire 12:45 PM Early Calculating Devices Bob Roswell 1:45 PM Atari 8 Bit Bot, Apple // Bot Kay Savetz 1:30 PM Xerox Star Jason Perkins 2:00 PM Internet Streaming with Vintage Computers Amiga Bill 2:00 PM CRT Repair Ian Primus 2:30 PM PDP-8/I Peripherals and CalComp Plotter David Gesswein 3:00 PM Printers Jason Perkins 2:45 PM 6502: First Five Years Ethan Dicks 3:30 PM Chip-8 Wil Lindsay 3:15 PM VCF Museum Tour Corey Cohen 4:00 PM Vic-20 Fully Loaded Jeff Salzman 4:00 PM Making of the 6502 Harry Bawcom 4:30 PM The Casio/Microsoft Connection Bill Degnan 5:00 PM Commodore Show And Tell Bil Herd, Dave Haynie 5:00 PM Making of the 6502 Bill Mensch -- ========================================= Jeff Brace Vice President & Board Member Vintage Computer Festival East Show-runner Vintage Computer Federation is a 501c3 charity http://www.vcfed.org/ jeffrey(a)vcfed.org cell: 732-759-1783

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VCF East 2020 Kit Available!
by systems_glitch 07 Oct '20

07 Oct '20

Tindie listing: https://www.tindie.com/products/glitchwrks/glitch-works-r6501qr6511q-single… forums thread: http://www.vcfed.org/forum/showthread.php?73828-ANNOUNCE-VCF-East-2020-Kit-… Nothing like getting something done right before the due date, eh? Work has been crazy and, fortunately or unfortunately, due to a possible coronavirus exposure we self-quarantined for the last two weeks and I was able to finally wrap up the user manual and assembly guide for the 2020 VCF East workshop kit! This year's kit was intended to fit in with the overall 6502 theme of VCF East 2020; however, I didn't want to do a 6502 SBC since there's a lot of good ones already available, and I felt like we needed something more unique. I happened to have some Rockwell R6501Q "single-chip microcomputer" processors, which are a 6502 core with some changes in a funky "QUIP-64" package -- if the plastic Motorla 68000 is the "Texas cockroach," this is the chip package version of a house centipede :) The R6501Q is 6502 core but adds a few instructions, and has I/O and control registers in zero page. Stack also lives in zero page. This provides a little bit of a challenge in porting existing 6502 code. The EEPROMs included in the parts kit are loaded with the Enhanced Woz monitor, Steve Wozniak's 6502 monitor from the Apple 1 days. We're working on ports of EhBASIC and Tiny BASIC as well. They're not done yet -- EhBASIC is going to be a much larger project, but Tiny BASIC is very nearly done and should be available for testing this week. Both can be loaded in over the serial port without reprogramming the EEPROM. Anyway, check out the Tindie listing for more information, links to source code, and a link to the PDF manual (which has schematics, of course). We're going to try and livestream something during Virtual VCF East this weekend. Thanks, Jonathan

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Free Livingston PortMaster 2 board
by Jonathan Sturges 07 Oct '20

07 Oct '20

Cleaning out the garage this weekend, I came across this board. I believe it comes from one of the multi-slot PM2s, but I think is the same PCB as those in the standalone PM2. Board has an unknown quantity of RAM installed. It is assumed to work but I can't guarantee it. P/N: 400-1220 Rev. B "Rev G" ROM Free for shipping cost, or I can bring it InfoAge this weekend. thanks, Jonathan Vienna, VA 22180

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CoCo 1 for Sale in PA [FBM]
by Alexander Jacocks 07 Oct '20

07 Oct '20

If anyone is looking for a Color Computer 1, there’s one for sale near Harrisburg, PA: https://www.facebook.com/marketplace/item/708189433113876/ - Alex

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