Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

Two more Alto restoration videos https://youtu.be/Grl0KCFiJLs https://youtu.be/adEr2aRwHnI You can even catch a glimpse of Al in the second one :-) Marc On 2/21/17 8:46 AM, Liam Proven wrote: On 20 February 2017 at 08:09, Curious Marc wrote: Alto

Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

On 2/21/17 8:46 AM, Liam Proven wrote: On 20 February 2017 at 08:09, Curious Marc wrote: Alto Restoration Videos Parts 13 and 14 are uploaded https://youtu.be/5f43fmZcj9Y https://youtu.be/LxFv2JNNW-A Excellent stuff -- thank you for this! Filing cabinets full of

Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

On 20 February 2017 at 08:09, Curious Marc wrote: > Alto Restoration Videos Parts 13 and 14 are uploaded > > https://youtu.be/5f43fmZcj9Y > > https://youtu.be/LxFv2JNNW-A > Excellent stuff -- thank you for this! Filing cabinets full of disks, eh? Wow. How many working

Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

Alto Restoration Videos Parts 13 and 14 are uploaded https://youtu.be/5f43fmZcj9Y https://youtu.be/LxFv2JNNW-A Marc

Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

..@gmail.com> >> > wrote: >> > Next Episode: >> > https://youtu.be/EDw8U1a6s78 >> > http://www.righto.com/2016/07/restoring-y-combinators-xerox-alto-day_31.html >> > Marc >> > >> > From: Curious Marc [mailto:curiousma...@gmail.co

Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

gt; > > > On Jul 31, 2016, at 6:12 PM, CuriousMarc <curiousma...@gmail.com> > > > wrote: > > > Next Episode: > > > https://youtu.be/EDw8U1a6s78 > > > http://www.righto.com/2016/07/restoring-y-combinators-xerox- > alto-day_31.html > > &g

Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

31.html > > Marc > > > > From: Curious Marc [mailto:curiousma...@gmail.com] > > Sent: Tuesday, July 12, 2016 2:01 AM > > To: Curious Marc; cctalk@classiccmp.org > > Subject: Re: Y Combinator is restoring one of Alan Kay's Xerox Alto > > machines > >

Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

6/07/restoring-y-combinators-xerox-alto-day_31.html > Marc > > From: Curious Marc [mailto:curiousma...@gmail.com] > Sent: Tuesday, July 12, 2016 2:01 AM > To: Curious Marc; cctalk@classiccmp.org > Subject: Re: Y Combinator is restoring one of Alan Kay's Xerox Alto > machine

Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

On 27 September 2016 at 17:21, Al Kossow wrote: > How would you suggest they do that? They have one disk drive. There is a ton of discussion in here about imaging old media. There are also disk execisers and the like. It's not big by modern standards, and it's fairly

Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

> https://youtu.be/EDw8U1a6s78 >> http://www.righto.com/2016/07/restoring-y-combinators-xerox-alto-day_31.html >> Marc >> >> From: Curious Marc [mailto:curiousma...@gmail.com] >> Sent: Tuesday, July 12, 2016 2:01 AM >> To: Curious Marc; cctalk@classiccmp.org >

Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

On 9/27/16 8:21 AM, Al Kossow wrote: > Also, if they have a Lyon optical mouse, they need to come up with a pad, I > pointed > them to a paper Dick wrote that shows the hexagonal pattern in enough detail > to draw > a new one. >

Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

How would you suggest they do that? They have one disk drive. This is the perennial problem with the Alto, it expects there is a network so you can do things like network copydisk. LCM solved their problem by having two machines, and building a 3 to 10mbit gateway with a simulated file server.

Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

On 27 September 2016 at 08:07, wrote: > And it finally boots on session 8! > https://youtu.be/9OQMhvArI9g Great work! But I think the team is secretly happy that it only _partially_ works as that means that there is lots more troubleshooting and fettling yet to do. ;-)

Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

ors-xerox-alto-day_31.html > > Marc > > > > From: Curious Marc [mailto:curiousma...@gmail.com] > > Sent: Tuesday, July 12, 2016 2:01 AM > > To: Curious Marc; cctalk@classiccmp.org > > Subject: Re: Y Combinator is restoring one of Alan Kay's Xerox Alto > > machin

Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

> https://youtu.be/EDw8U1a6s78 > http://www.righto.com/2016/07/restoring-y-combinators-xerox-alto-day_31.html > Marc > > From: Curious Marc [mailto:curiousma...@gmail.com] > Sent: Tuesday, July 12, 2016 2:01 AM > To: Curious Marc; cctalk@classiccmp.org > Subject: Re: Y

Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

ious Marc [mailto:curiousma...@gmail.com] > Sent: Tuesday, July 12, 2016 2:01 AM > To: Curious Marc; cctalk@classiccmp.org > Subject: Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines > > Ken's in-depth blog post to go with the previous video > http://www.ri

Re: FW: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

Curious Marc [mailto:curiousma...@gmail.com] Sent: Tuesday, July 12, 2016 2:01 AM To: Curious Marc; cctalk@classiccmp.org Subject: Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines Ken's in-depth blog post to go with the previous video http://www.righto.com/2016/07/restoring-y-combinator

FW: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

y 12, 2016 2:01 AM To: Curious Marc; cctalk@classiccmp.org Subject: Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines Ken's in-depth blog post to go with the previous video http://www.righto.com/2016/07/restoring-y-combinators-xerox-alto-day_11.html On Jul 5, 2016, at 2:46 PM,

Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

On Fri, Sep 9, 2016 at 2:56 AM, Eric Smith wrote: > Note that the speed grade of a DRAM only guarantees that it is at > least as fast as the grade; it may be faster. For instance, an > MK4116-2 is rated for maximum 150 ns access, while an MK4116-3 is > rated for maximum 200

Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

On Fri, Sep 9, 2016 at 2:35 AM, Adrian Graham wrote: > Apropos of 4116 RAM chips over the last 8 or so months I've restored 4 CBM > PETs, 3 Apple ][s and a few Sinclair ZX Spectrums. All these use either > 4116-2 or 4116-3 (or can use either as long as they're matched

Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

On 9/9/16 1:15 AM, curiousma...@gmail.com wrote: On Sep 7, 2016, at 4:18 PM, Josh Dersch wrote: Yep, the NEC uPD416D's are what we have in the Alto we recently restored. And yeah, it takes awhile, but it's worth the effort :). Have fun! - Josh Out of curiosity, did you

Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

> On Sep 7, 2016, at 4:18 PM, Josh Dersch wrote: > > Yep, the NEC uPD416D's are what we have in the Alto we recently restored. > And yeah, it takes awhile, but it's worth the effort :). > > Have fun! > - Josh Out of curiosity, did you find any bad RAM chips in your system?

Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

On Wed, Sep 7, 2016 at 3:43 PM, CuriousMarc wrote: > > > On Sep 5, 2016, at 9:30 AM, Josh Dersch wrote: > > > > > > At the LCM, I used an Apple II to test out the Alto's memory -- the > > > Alto II XM uses 4116 RAM chips. I swapped in a row at a time

RE: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

> > On Sep 5, 2016, at 9:30 AM, Josh Dersch wrote: > > > > At the LCM, I used an Apple II to test out the Alto's memory -- the > > Alto II XM uses 4116 RAM chips. I swapped in a row at a time and wrote a > > little BASIC program to test for obvious errors. This was > >

Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

> On Sep 5, 2016, at 9:30 AM, Josh Dersch wrote: > > At the LCM, I used an Apple II to test out the Alto's memory -- the Alto II > XM uses 4116 RAM chips. I swapped in a row at a time and wrote a little > BASIC program to test for obvious errors. This was time-consuming,

Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

On 9/5/16 8:55 AM, Al Kossow wrote: This is why Alto restoration with one set of boards is extremely difficult. The machine wasn't designed to be serviced. Almost everything has to work before you can do anything, and there is a very high probability that in the process of bringing it up you

Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

This is why Alto restoration with one set of boards is extremely difficult. The machine wasn't designed to be serviced. Almost everything has to work before you can do anything, and there is a very high probability that in the process of bringing it up you will corrupt the disk pack. Hopefully the

Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

On 4 September 2016 at 08:08, wrote: > Episode 5, still does not boot, but we are starting to follow long why: > https://youtu.be/Wr7vDZpniNIr I know I'm a total lightweight and a board-swapper, but the depth and the skills involved in this troubleshooting -- let alone

Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

g-y-combinators-xerox-alto-day_31.html > Marc > > From: Curious Marc [mailto:curiousma...@gmail.com] > Sent: Tuesday, July 12, 2016 2:01 AM > To: Curious Marc; cctalk@classiccmp.org > Subject: Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines > > Ken

RE: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

is restoring one of Alan Kay's Xerox Alto machines Ken's in-depth blog post to go with the previous video http://www.righto.com/2016/07/restoring-y-combinators-xerox-alto-day_11.html On Jul 5, 2016, at 2:46 PM, Curious Marc <curiousma...@gmail.com> wrote: Video from yesterday’s work on the

Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

Ken's in-depth blog post to go with the previous video http://www.righto.com/2016/07/restoring-y-combinators-xerox-alto-day_11.html > On Jul 5, 2016, at 2:46 PM, Curious Marc wrote: > > Video from yesterday’s work on the Diablo cartridge disc: >

Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

On Wed, Jun 29, 2016 at 10:23 AM, Al Kossow wrote: > "The simulator has a few bugs and tends to start failing after a few > minutes" > > Salto is quite old at this point. A lot of bugs were squashed when the > code was ported into MAME. > > There is still a problem with the

Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

"The simulator has a few bugs and tends to start failing after a few minutes" Salto is quite old at this point. A lot of bugs were squashed when the code was ported into MAME. There is still a problem with the cursor, hopefully Josh can provide some pointers on how to fix that based on the

Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

Latest entry from Ken Shirriff, trying out BCPL (ancestor of C). On the emulator, not yet on the real machine: http://www.righto.com/2016/06/hello-world-in-bcpl-language-on-xerox.html Marc There are only two entries right now:

Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

There are only two entries right now: http://www.righto.com/2016/06/y-combinators-xerox-alto-restoring.html http://www.righto.com/2016/06/restoring-y-combinators-xerox-alto-day.html Marc On 24 June 2016 at 10:05, wrote: And here is Ken's new post in the series

Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

ot; <cctalk@classiccmp.org> Date: Monday, June 20, 2016 at 8:51 AM To: "cctalk@classiccmp.org" <cctalk@classiccmp.org> Subject: Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines I post just went up on Saturday. It's nice that both CHM and LCM folks are hel

Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

On 24 June 2016 at 10:05, wrote: > And here is Ken's new post in the series > http://www.righto.com/2016/06/restoring-y-combinators-xerox-alto-day.html I can't see any dates on the post, but I am not seeing a new one there... -- Liam Proven • Profile:

Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

gt; From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Al Kossow > Sent: Monday, June 20, 2016 8:54 AM > To: cctalk@classiccmp.org > Subject: Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines > > http://www.righto.com/2016/06/y-combinators-xerox

RE: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

] On Behalf Of Al Kossow Sent: Monday, June 20, 2016 8:54 AM To: cctalk@classiccmp.org Subject: Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines http://www.righto.com/2016/06/y-combinators-xerox-alto-restoring.html https://news.ycombinator.com/item?id=11929396 http://ed-thelen.org

Re: Y Combinator is restoring one of Alan Kay's Xerox Alto machines

http://www.righto.com/2016/06/y-combinators-xerox-alto-restoring.html https://news.ycombinator.com/item?id=11929396 http://ed-thelen.org/RestoreAlto/index.html On 6/20/16 8:51 AM, Al Kossow wrote: > I post just went up on Saturday. It's nice that both CHM and LCM folks > are helping with this. >

Y Combinator is restoring one of Alan Kay's Xerox Alto machines

http://www.righto.com/2016/06/y-combinators-xerox-alto-restoring.html Found via: http://www.osnews.com/story/29261/Xerox_Alto_restoring_the_legendary_1970s_GUI_computer There are 2 videos up so far, with disassemblies that may interest CCmpers. Some people from the list are involved, including