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HISTORY
The PowerBook Duo was a line of small subnotebooks manufactured and sold by Apple Computer from 1992 until 1997 as a more compact companion to the PowerBook line. Improving upon the PowerBook 100's portability (its immediate predecessor and Apple's third smallest laptop), the Duo came in seven different models; they were the Duo 210, 230, 250, 270c, 280, 280c, and 2300c.

PowerBook Duos lacked most common ports (featuring only one internal printer/modem serial port and an optional fax/modem card port). In their place was a docking ability, accomplished via a unique 156-pin Processor Direct Slot giving the docks full access to the Duo's CPU and data buses. The Mini Dock was a port expander for the PowerBook Duo and was popularly offered by many third-party manufacturers as well as Apple. When attached, the PowerBook Duo could be plugged into various standard desktop devices including SCSI, ADB, serial, floppy, external speakers, and an external display. This type of dock also allowed the Duo's internal LCD and battery to be used.

SPECIFICATIONS
  • Size 10.9" x 8.5" x 1.4"
  • 12 megabytes of RAM
  • 33 MHz 68LC040 processor
  • System Software 7.1
  • 16-shade greyscale active-matrix LCD display
  • 230MB storage

USAGE
This machine was given to me by an old acquaintance; he had initially intended to sell the unit, but decided it wasn't worth the effort. Because his big selling point was the number of old Mac games on the system, I dubbed it Okama, after the game system in South Park. I am aware of what the word means in Japanese; I still call it that. Honestly, outside of that, I've not done much with this system; the docking "utility" is very annoying in my opinion, and the screen just feels ridiculously flimsy.