Intel's CEO, battling to keep the company relevant as computing moves beyond the PC, introduced a new line of wearable computers Monday night, including a connected smart watch and a pair of earbuds with a built-in heart monitor. CEO Brian Krzanich also introduced a PC the size of an SD card called Edison that's aimed at the growing wearables market. He showed Edison connected to a baby's "onesie" outfit that was fitted with sensors to monitor the infant's health.