PowerBook G3 Series (Wallstreet)

From Applepedia

The PowerBook G3 Series laptops had a revamped design both inside and out compared to the older "Kanga" model. With a wide variety of build options (three CPU speeds (233, 250, or 292 MHz), two display sizes), the first PCMCIA slots on a PowerBook, the Wallstreet series ranged in price from $2,299 to $7,000. It's the oldest laptop capable of running MacOS X - 10.2.8 is officially supported. Using XPostFacto, it can be cajoled into 10.3. Swapping the drive into a Firewire or USB2 enclosure for a 10.4 install works with the help of XPostFacto.