At the Computer History Museum, CNET gets a look at Charles Babbage's computing and printing machine, designed in the 1840s to rid data sheets of human error.
MOUNTAIN VIEW, Calif.--How's this for a computer: 8,000 parts, 5 tons, 11 feet long and 7 feet tall. Meet the Babbage Difference Engine.
This one, Difference Engine No. 2, was built for former Microsoft CTO Nathan Myhrvold, who donated it to the Computer History Museum here.
Light bulbs you shouldn't buy
There are plenty of dimmable LED light bulbs, but make sure you don't buy the ones that flicker when you dial them down.