Last updated at 11:28 pm UTC on 11 September 2019
An ARM based credit card sized linux system for USD35. Runs Squeak very nicely.
See http://www.raspberrypi.org for the full details, their blog and forums.
The 2017 model is a quad-core ARMv8 1.2GHz cpu with 1Gb of ram, 4 usb2 ports, an ethernet port, wifi and BT, a line-out socket, two specialised connectors for an lcd panel and camera, HDMI and the infamous micro-usb power connector. It runs the full Cog/Spur VM quite fast.
The 2018 model 3B+ boosted performance with faster (1.4GHz A53) cores, faster ethernet and dual band wifi.
In 2019 the Pi 4 offers significantly faster 1.5GHz A72 cores, 1/2/4Gb of ram, USB3, fully gigabit ethernet, BT5LE and dual hdmi display outputs.
Is the Raspberry Pi OS -- 32 bit and/or 64 bit?
Installation instructions for the latest VM on the RaspberryPi
RaspberryPi GPIO support package on SqueakMap
Squeak 5.1 runs on Pi. The VM is also in the all-in-one.
Squeak 5.0 runs on the Raspberry Pi computer. It uses the fast Cog virtual machine.
The Squeak 5.0 all-in-one bundle has a cog/spur vm ready to go on the Pi.
Sept 2015 Scratch Release on Raspberry Pi
The Raspberry Pi 2 & 3 contain a 40 pin GPIO - General-purpose input/output circuit on board which can be accessed from Scratch. (GPIO pins)
Scratch on Pi reviews
New Scratch review
Podcasts with tim
Carrie Anne Philbin, Adventures in Raspberry Pi (Chapter 3)
Book for children (in Italian)