I'm not sure of all of the differences but an iBook lacks a PCMCIA slot, the PowerBooks are so equipped. /KRM On Mon, 9 Aug 2004 13:07:21 -0500 Brian Dunbar <brian.dunbar at plexus.com> wrote: > > Ur, work handed me a PowerBook G4 a few months ago. It's my > first Mac so pardon a basic question .. > > What's the diff between PowerBook and IBook ?