Editing PowerBook Duo (section)

{{short description|Line of subnotebooks manufactured and sold by Apple Computer}}
{{Use mdy dates|date=October 2013}}
{{refimprove|date=June 2008}}
{{Infobox information appliance
| name = PowerBook Duo
| aka = 
| image = Powerbook duo 2300c.jpg
| caption = Apple PowerBook Duo 2300c with standard CD jewel case, for size comparison
| manufacturer = [[Apple Inc.|Apple Computer]]
| family = [[PowerBook]]
| type = [[Subnotebook]]
| releasedate = {{Start date|1992|10|19}}
| discontinued = {{End date|1997|2|1}}
| unitssold = 
| unitsshipped = 
| os = 
| cpu = 
| memory = 
| storage = 
| display = 
| graphics = 
| sound = 
| input = 
| dimensions = {{convert|10.9|xx|8.5|xx|1.4|in|abbr=on}}
| weight = {{cvt|4.1|lb}}
| predecessor = [[PowerBook 100]]
| successor = [[PowerBook 2400c|PowerBook 2400]]
}}

The '''PowerBook Duo''' is a line of [[subnotebook]]s manufactured and sold by [[Apple Inc.|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 [[PowerBook Duo 210|Duo 210]], [[PowerBook Duo 230|230]], 250, 270c, 280, 280c, and 2300c, with the 210 and 230 being the earliest, and the 2300c being the final version before the entire line was dropped in early 1997.

Weighing {{Convert|4.1|lb}} and slightly smaller than a sheet of paper at {{convert|10.9|x|8.5|in|abbr=on}}, and only {{convert|1.4|in|abbr=on}} thick, it was the lightest and smallest of all of Apple's PowerBooks at the time, and remains one of Apple's smallest notebooks ever produced. The Duo had the most in common with the original MacBook Air which only included one [[USB|USB 2.0]] port, one video port (requiring an adapter) and one speaker port, but no ability for expansion.<ref name="SS1" />

The PowerBook Duo line was replaced by the [[PowerBook 2400c|PowerBook 2400]], which was slightly larger in size than the Duos, but still only the fifth-smallest behind the 12-inch [[PowerBook G4#Aluminium PowerBook G4|PowerBook G4]] which succeeded it as fourth-smallest. Although both featured much more onboard functionality, they lacked docking ability.