Tech feed
44,100
An audio CD represents each stereo channel with 44,100 samples per second, using 16 bits for every sample. Those numbers describe the sound signal, not the speed at which a disc spins.
1991
The camera widely remembered as the first webcam watched a coffee pot at Cambridge in 1991, initially over a local network. It became accessible through the World Wide Web in November 1993.
1964
The first mouse prototype in Douglas Engelbart’s research program was built in 1964 with a wooden body. Engineer Bill English constructed the device, which tracked movement using two perpendicular wheels.