ACM Queue: If you were looking for lessons on energy-efficient computing, one person you would want to speak with would be Steve Furber, principal designer of the highly successful ARM (Acorn RISC Machine) processor.Currently running in billions of cell phones around the world, the ARM is a prime example of a chip that is simple, low power, and low cost.Furber led development of the ARM in the 1980s while at Acorn, the UK company also known for the BBC Microcomputer, which Furber played a major role in developing.David Brown interviews Furber about some of the lessons on energy-efficient computing he has learned through working on these and subsequent projects.Furber also talks about his current project, SpiNNaker (Spiking Neural Network Architecture), a massively parallel system of a million ARM processors designed to simulate the workings of part of the human brain.
The finding that the Saturnian moon may host layers of icy slush instead of a global ocean could change how planetary scientists think about other icy moons as well.
Modeling the shapes of tree branches, neurons, and blood vessels is a thorny problem, but researchers have just discovered that much of the math has already been done.
January 29, 2026 12:52 PM
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