With a delay in development causing them to be three weeks behind schedule, the $25 (£16) computer is set to go into production in January
The Raspberry Pi is said to use an ARM chip similar to what we find in mobile phones, and will run on a version of the Linux open source operating system.
Test versions of completed devices are being tested to see if everything is going according to plan and once this is done, volume production will start in January 2012.
There are two configurations intended for this computer. Model A will sell for $25 (£16) without a network connector, and Model B will be available for $35 (£22), with an Ethernet port.
In a blog post, the Raspberry Pi foundation, based in Cambridgeshire, said: "If all the boards from this batch perform well in testing, we’ll be auctioning ten of them off; details will be available here as soon as we are confident that they’re perfect."
"Once we’re happy that this test run is fine, we’ll be pushing the button immediately on full-scale manufacture in more than one factory," the post said.
The inspiration for the computer was to get young people interested in starting a career in technology, and came from video game expert David Braben.