PowerBook Duo 230

The PowerBook Duo 230 was a subnotebook from the PowerBook Duo line that was introduced by Apple Computer on October 19, 1992.

Features
The Duo 210 featured a 33 MHz Motorola 68030 processor and a 640x400 4-bit grayscale display, with improved contrast over standard  screens. The logic board contained 4 MB of RAM which could be upgraded to 24 MB. It was compatible with all Duo Dock models.

It shipped with System 7.1 (with System Enabler 201) and could be upgraded to Mac OS 7.6.1.