The PowerBook G4 is a series of notebook computers manufactured, marketed, and sold by Apple Computer between 2001 and 2006 as part of its PowerBook line of notebooks. The PowerBook G4 runs on the RISC-based PowerPC G4 processor, designed by the AIM (Apple/IBM/Motorola) development alliance and initially produced by Motorola. It was built later by Freescale, after Motorola spun off its semiconductor business under that name in 2004. The PowerBook G4 has had two different designs: one with a titanium body with a translucent black keyboard and a 15-inch screen; and another in an aluminum body with an aluminum-colored keyboard, in 12-inch, 15-inch, and 17-inch sizes.
An aluminum PowerBook G4 with a 15.2-inch screen
The titanium PowerBook G4 (nicknamed TiBook)
An aluminum PowerBook G4 with a 17-inch screen
PowerPC G4 is a designation formerly used by Apple to describe a fourth generation of 32-bit PowerPC microprocessors. Apple has applied this name to various processor models from Freescale, a former part of Motorola. Motorola and Freescale's proper name of this family of processors is PowerPC 74xx.
An 800 MHz Motorola PowerPC 7450 on a Power Mac G4 CPU module
A 1.25 GHz Sample 7445 EVT prototype on an iMac G4 DVT model
Image: MPC7400
Image: IBM 06K5319
