The Raspberry Pi £22 computer goes on general sale

A credit-card sized computer designed to help teach children to code goes on general sale for the first time today.

The Raspberry Pi is a bare-bones, low-cost computer created by volunteers mostly drawn from academia and the UK tech industry.

Sold uncased without keyboard or monitor, the Pi has drawn interest from educators and enthusiasts.

Supporters hope the machines could help reverse a lack of programming skills in the UK.

"It has been six years in the making; the number of things that had to go right for this to happen is enormous. I couldn't be more pleased," said Eben Upton of the Raspberry Pi Foundation.

School tools

The device's launch comes as the Department for Education mulls changes to the teaching of computing in schools with the aim of placing greater emphasis on skills like programming.

In a speech outlining those changes Michael Gove mentioned the Pi, suggesting devices like it could play an important role in the kind of computer class the government envisages:

"Initiatives like the Raspberry Pi scheme will give children the opportunity to learn the fundamentals of programming." he said.

"This is a great example of the cutting edge of education technology happening right here in the UK. "

Initially the £22 model of the Pi, which includes wifi, will be offered for sale. A cheaper £16 version will go on sale later in the year.

Supporters hope the thousands-strong community of people that has grown up around the Pi will help develop additional software and suggest uses for the device.

The Pi going on general sale is likely to add to the buzz around the machine, however, there are already a number of similar stripped-down computers on the market.

These include devices such as the Beagleboard and the Omnima MiniEMBWiFi.

Bottle-necks banished

The Raspberry Pi Foundation say they have already produced thousands of the machines using a Chinese manufacturer.

They had originally hoped to produce the devices in the UK - "we want to help bootstrap the UK electronics industry" they wrote in a blog post - but that turned out not to be possible at the right price.

But while production remains overseas, deals with two distributors, Element 14 and RS Components, mean that production volumes will be able to grow much faster than previously thought.

Rather than the foundation having to fund production, distributors have agreed to handle orders and deal with manufacturers paying the foundation a royalty on sales.

Mr Upton says that will help the project grow much more quickly then previously thought:

"We didn't realise how successful this was going to be," he said.

"This means we can scale to volume. Now we can concentrate on teaching people to programme."