Editing PowerBook Duo (section)

==Specifications==
[[File:Apple Macintosh Powerbook Duo 2300c.jpg|thumbnail|Apple Macintosh PowerBook Duo 2300c, built between 1995 and 1997]]
The 200–series Duos were powered by either [[Motorola 68030]] or [[Motorola 68040|68LC040]] processors, ranging from 25–33&nbsp;MHz. When Apple debuted its next-generation [[PowerPC]] processors in 1994, it took over a year for the first PowerPC Duo (the 2300c) to debut. The original [[PowerPC 600|PowerPC 601]], like the original [[Motorola 68040|68040]] before it, produced too much heat and consumed too much power for Apple to use in any laptop but, by the end of 1995, the more efficient [[PowerPC 600|PowerPC 603e]] had been developed, which was featured in the Duo 2300c and its full-size companion, the [[PowerBook 5300]] series. The PowerPC 603e was designed for a 64-bit bus, but was engineered by Apple to run on an older 32-bit bus to maintain compatibility with the Duo Docks. This led to poor system and video performance.

{{All are obsolete}}
{| class="wikitable mw-collapsible" style="font-size:small; text-align:center"

|-
! colspan=2 | Models<ref>{{Citation |title=Apple Macintosh PowerBook Duo Specs (Mac PowerBook Duo Specs): EveryMac.com |url=https://everymac.com/systems/apple/powerbook_duo/index-powerbook-duo.html |access-date=2022-07-26}}</ref>
! style="background:#FF9999" | [[PowerBook Duo 210]]<ref>{{Cite web |title=Macintosh PowerBook Duo 210: Technical Specifications |url=https://support.apple.com/kb/SP154 |publisher=[[Apple Inc.]] |access-date=2022-09-21}}</ref>
! style="background:#FF9999" | [[PowerBook Duo 230]]<ref>{{Cite web |title=Macintosh PowerBook Duo 230: Technical Specifications |url=https://support.apple.com/kb/SP155 |publisher=[[Apple Inc.]] |access-date=2022-09-21}}</ref>
! style="background:#FF9999" | PowerBook Duo 250<ref>{{Cite web |title=Macintosh PowerBook Duo 250: Technical Specifications |url=https://support.apple.com/kb/SP156 |publisher=[[Apple Inc.]] |access-date=2022-09-21}}</ref>
! style="background:#FF9999" | PowerBook Duo 270c<ref>{{Cite web |title=Macintosh PowerBook Duo 270c: Technical Specifications |url=https://support.apple.com/kb/SP157 |publisher=[[Apple Inc.]] |access-date=2022-09-21}}</ref>
! style="background:#FF9999" | PowerBook Duo 280<ref>{{Cite web |title=Macintosh PowerBook Duo 280: Technical Specifications |url=https://support.apple.com/kb/SP158 |publisher=[[Apple Inc.]] |access-date=2022-09-21}}</ref>
! style="background:#FF9999" | PowerBook Duo 280c<ref>{{Cite web |title=Macintosh PowerBook Duo 280c: Technical Specifications |url=https://support.apple.com/kb/SP159 |publisher=[[Apple Inc.]] |access-date=2022-09-21}}</ref>
! style="background:#FF9999" | PowerBook Duo 2300c<ref>{{Cite web |title=Macintosh PowerBook Duo 2300c: Technical Specifications |url=https://support.apple.com/kb/SP172 |publisher=[[Apple Inc.]] |access-date=2022-09-21}}</ref>

|-
! rowspan=2 | Timetable
! Introduced
| colspan=2 | October 19, 1992
| colspan=2 | October 21, 1993
| colspan=2 | May 16, 1994
| August 28, 1995

|-
! Discontinued
| October 21, 1993
| July 27, 1994
| colspan=2 | May 16, 1994
| November 14, 1994
| January 27, 1996
| February 1, 1997

|-
! rowspan=3 | Ordering info.

! Model
| colspan=7 | M7777
|-
! Gestalt ID
| 29
| 32
| 38
| 77
| 102
| 103
| 118

|-
! Order number
| M4161
| M4195
| M1933
| M1752
| M2797
| M2329
| M4220

|-
! rowspan=3 | Display
! Size
| colspan=3 | 9.1"
| 8.4"
| 9.1"
| 8.4"
| 9.5"
|-
! Colors
| colspan=3 | Grayscale 4-bit
| Color 16-bit
| Grayscale 4-bit
| Color 16-bit
| Color 16-bit{{Efn|Apple never offered a monochrome 2300, but a 2300 PowerPC motherboard could be installed in the PowerBook Duo 250, 270, and 280 as an upgrade}}
|-
! Method
| colspan=2 | [[Passive matrix addressing|Passive matrix]]
| colspan=5 | [[Active matrix]]

|-
! rowspan=3 | Performance
! Processor
! colspan=3 | [[Motorola 68030]]
! [[Motorola 68030]] with [[Motorola 68882]] [[Floating-point unit|FPU]]
! colspan=2 | [[Motorola 68LC040]]
! [[PowerPC 603e]]
|-
! Processor speed
| 25&nbsp;MHz
| colspan=5 | 33&nbsp;MHz
| 100&nbsp;MHz

|-
! RAM<br />(min.–max.)
| colspan=3 | 4–24 MB
| 4–32 MB
| colspan=2 | 4–40 MB
| 8–56 MB

|-
! colspan=2 | Storage
| 80 MB
| 80, 120 MB
| 200 MB
| colspan=2 | 240 MB
| 320 MB
| 750 MB, 1.1 GB

|-
! rowspan=2 | Operating systems
! Original
| colspan=2 | [[System 7.1]]
| colspan=4 | [[System 7.1.1]]
| [[System 7.5.2]]

|-
! Maximum
| colspan=4 | [[Mac OS 7.6.1]]
| colspan=2 | [[Mac OS 8.1]]
| [[Mac OS 9.1]]

|-
! colspan=2 | Docking Stations
| colspan=3 | Duo Dock<br />Duo Dock II<br />Duo Dock Plus (has no FPU)
| Duo Dock (with top cover replacement)<br />Duo Dock II<br />Duo Dock Plus
| Duo Dock<br />Duo Dock II<br />Duo Dock Plus
| colspan=2 | Duo Dock (with top cover replacement)<br />Duo Dock II<br />Duo Dock Plus

|}