John Charles Dvorak (born April 5, 1952) is an American columnist and broadcaster in the areas of technology and computing. His writing extends back to the 1980s, when he was a mainstay of a variety of magazines. Dvorak is also the vice president of Mevio (formerly PodShow) and well known for his work on TechTV and TWiT.tv. He is currently a co-host of The No Agenda Show.