But the winners combined great teamwork with excellent use of both the Raspberry Pi hardware and inventive programming.

BBC: The life of Pi - clever ideas with a tiny computer

Compatible across Android and Apple iOS-enabled devices, Dyle is available in 35 US markets, potentially reaching 55 percent of the population, and will add additional network programming and hardware in the future.

ENGADGET: RCA Mobile TV Tablet combines DTV with Dyle, arrives this spring for $299

"The piano is kind of the hardware for the software of our programming that goes on year round, " said Zamora, who founded Sing for Hope in 2006 with fellow opera singer Monica Yunus, launching the first piano festival in partnership with British artist Luke Jerram in 2010 when 60 pianos were featured.

WSJ: Summertime outdoor pianos returning to NYC

Dr Cardelli is trying to discover whether it is more like the hardware of electronic circuits or the software of programming languages.

ECONOMIST: Computing and biology

The company made some changes in its hardware and invested heavily in supporting software and its CUDA programming architecture, now in Release 4.0, which makes it easier to program and to move applications to the GPUs.

FORBES: Supercomputing and High Performance See Growing GPU Adoption

The idea, says Buell Duncan III , IBM's general manager for ISV and developer relations, is to create a network of companies large and small, which are conversant in both nonproprietary, or open, computing standards, like the Linux operating system or the Java programming language, and IBM's suite of hardware, middleware and services.

FORBES: Magazine Article

Earlier this week the streaming hi-fi hardware maker Sonos announced that it was opening up its API (Application Programming Interface) so that music services could build apps - and those already include Spotify.

BBC: Spotify goes apptastic