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 Restoration Videos Parts 13 and 14
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 disks, eh? Wow.
How many
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 Altos are there left in t
Alto Restoration Videos Parts 13 and 14 are uploaded
https://youtu.be/5f43fmZcj9Y
https://youtu.be/LxFv2JNNW-A
Marc
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
>> > Subj
; > > 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.com]
> > > Sent: Tuesda
t; >
> > On Jul 31, 2016, at 6:12 PM, CuriousMarc
> > 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.
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's in-depth blog post to go with the
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 well-documented; read the co
ombinators-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
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.
>
http://static.googleusercontent.com/media/research.google.com/en
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.
C
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. ;-)
Might it not be a good
: 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
om/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 Combinator is restoring one of Alan Kay's Xerox A
sday, 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-combinators-xerox-alto-d
il.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-combinators-xerox-alto-day_11.
s 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, Curious Marc &
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 ns access. If a machi
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 in 8s) and
> they've all had
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 in 8s) and
they've all had one or more RAM failures.
I built a rudimentary chip tester u
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 find any bad RAM chips
> 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? If so, how
many? I ha
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 and wrote
> a
> > > little BASIC program to
> > 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, but eli
> 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, but
> eliminated th
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 wil
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
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 the actual
tools -- are l
_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's in-dep
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 di
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:
> https://youtu.be/PR5LkQugBE0
> Should be up in a f
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 cursor, hopefully Josh
"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 work
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:
http://www.righto.com/2016/06/y-combinators-xerox-alto-restor
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
http://www.righto.com/2016/
ssiccmp.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 helping with this.
On 6/20/16 8:41 AM, Liam Proven wrote:
http://www.righto.com/2016/06/y-combinators-xer
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: http://lproven.livejournal.com/profile
Em
alk [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-alto-restoring
mp.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-alto-restoring.html
https://news.ycombinator.com/item?id=11929396
http:
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.
>
I post just went up on Saturday. It's nice that both CHM and LCM folks
are helping with this.
On 6/20/16 8:41 AM, Liam Proven wrote:
> 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_19
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
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