PowerBook G3

Essentials

Family: PowerBook G3/G4

Codename: Kanga

Gestalt ID: 313

Minimum OS: 8.0

Maximum OS: 9.1

Introduced: November 1997

Terminated: May 1998

Processor

CPU: PowerPC 750 "G3"

CPU Speed: 250 MHz

FPU: integrated

Bus Speed: 50 MHz

Data Bus Width: 64-bit

Address Bus Width: 32-bit

ROM: 4 MB

RAM Type: unique

Minimum RAM Speed: 60 ns

Onboard RAM: 32 MB

RAM slots: 1

Maximum RAM: 160 MB

Level 1 Cache: 32 kB data, 32 kB instruction

Level 2 Cache: 512 kB backside, 1:2.5

Expansion Slots: 2 Type II or 1 Type III PC Card

Video

Screen: 12.1" active matrix

Max Resolution: 16 bit 800x600

Video Out: HDI-15

Storage

Hard Drive: 5.0 GB

Floppy Drive: 1.4 MB SuperDrive

Optical Drive: 20x CD-ROM

Input/Output

ADB: 1

Serial: 1 Mini DIN-8

SCSI: HDI-30

Audio Out: stereo 16 bit mini

Audio In: stereo 16 bit mini

Speaker: stereo

Microphone: mono

Networking

Ethernet: 10Base-T

Miscellaneous

Power: 45 Watts

Dimensions: 2.4" H x 11.5" W x 9.5" D

Weight: 7.5 lbs.

The PowerBook G3 was the first PowerBook to use the PPC 750, a third generation Motorola/IBM processor. The 750, or "G3" as it had been nicknamed before, was the first PPC processor designed to use a high speed, "backside" cache which could interact with the processor at much faster speeds than a standard L2 cache, which was restricted by the motherboard speed. The PowerBook G3 was similar to the PowerBook G3 series.

Picture Credits:
John Greenleigh/Flipside Studios