The next big thing for data centers: DC power

Although we live in an AC-dominated world, DC seems poised for a comeback, particularly in data centers. Facebook adopted a DC architecture in its Prineville, Ore., data center. SAP spent $128,000 retrofitting a datacenter at its offices in Palo Alto, Calif., to rely on DC power.

IBM builds memory chips one atom at a time

Computer and memory chips usually tend to get smaller over time, but in a paper published Thursday in Science, IBM details how it’s building memory chips that would be 100 times more dense than today’s hard drives by starting with the smallest building blocks: atoms.