See here
Updated: Mr Ed Designer: Generating User Interfaces with PLT Scheme
See here
Maglev Ruby
Ruby is often compared to Smalltalk; and I’m sure a bunch of folks have always wondered when someone would implement Ruby either on top of Smalltalk (or even in a similar manner to Smalltalk, aka Rubinius).
Avi Bryant wondered as such, and seems to have gotten a job out of it in producing Maglev Ruby (it is a video).
Maglev seems to be the combination of a Ruby VM implemented along with a distributed, concurrent object system to support the needs of Ruby on Rails.
I heard Avi speak at OSCON 06, and he seems to be a nice fellow; I’ll be interested to see how this pans out.
Strangely, I haven’t heard Maglev mentioned by anyone I know, perhaps Ruby VMs aren’t interesting.
Nondeterministic Computing with amb
Ben demonstrates how to utilize nondeterministic computing in his article Escape From Zurg.
Computing History at Bell Labs
In 1997, on his retirement from Bell Labs, Doug McIlroy gave a fascinating talk about the “History of Computing at Bell Labs.”
Here is one man’s transcription of that talk.
I only skimmed over it (at the moment I’m not interested in what was); but nonetheless it does look like a great talk with a lot of fun and interesting bits in there.
match.ss Examples
Ben posted some examples of how to use the PLT match.ss library here.
Mosh Scheme
Mosh Scheme is
A Fast R6RS Scheme interpreter.
I saw Mosh referenced on the SRFI-98 email discussion archive.
There already a wiki written using Mosh.
Addendum 7/18/8:
Mosh has been updated to version 0.0.5.
SRFI 98: An interface to access environment variables
This announces the availability for discussion of
Scheme Request for Implementation 98
“An interface to access environment variables.”
by Taro Minowa(Higepon).
Its draft and an archive of the ongoing discussion is available at
(via Usenet)
OLPC News Forum
The OLPC News Forum is the place to go for XO discussion.
SD Cards on the XO
Here is the page on the OLPC website that documents secure digital cards on the XO.
The XO supports SDHC (high capacity). I use a 16GB AData card on my XO without problem.
Here is a little reminder: when you insert the SD card into the XO, do so with the screen, and the shiny part of the card, both facing you.
BTW: I use a “Sandisk MicroMate for SDHC” USB adapter to work with the card under Windows XP, it cost 8USD from an Amazon affiliate.