Microsoft’s Steve Ballmer argues that the tablet computers (aka slates, media tablets or iPads) are PCs. Steve Jobs argues that they are post-PC devices. There are analogies to trucks, cars and various metaphors for what these new devices symbolize. Some argue that because the iPad needs a PC, it’s not a post-PC device.
But how to define a new generation of computing? Since the PC is not the beginning of computing, it may make sense to look to the eras of computing that preceded it.