PowerBook Duo 230

Overview

Along with the 25MHz Duo 210, this was the first dockable Mac. By eliminating the internal floppy drive (as with PB 100) along with other size and weight saving measures, Apple got this one down to 4.2 pounds. The Duo sports a 4-bit passive-matrix screen similar to the 6.8 lb. PB 160.

Details

• introduced October 1992 at $2,610; discontinued June 1994
• requires System 7.1 or later
• 33MHz 68030 CPU; optional 68882 FPU in dock
• 4MB RAM, expandable to 24MB using a single Duo RAM card
• ADB port: only with dock
• DIN-8 serial port on back of computer
• proprietary modem slot
• weight: 4.2 pounds
• upgrade path: Duo 280

 Cautions

• Serial port limited to 57.6kbps; use of a 56k modem is not recommended.