Category 3 cable, commonly known as Cat-3, is an unshielded twisted paircable designed to reliably carry data up to 10Mbps. It was a popular cabling format in the early 1990s, but has since been almost entirely replaced by the very similar Cat-5, which offers higher top speeds.
... January 10 - Ray Bolger, actor, singer, dancer (+ 1987)
January 18 - Cary Grant, actor (+ 1986)
January 22 - George Balanchine, choreographer (+ 1983)
January 26 - ...