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Image Credit: Apple Inc.
Image Credit: Macworld,
December 1993
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Introduced: October 21, 1993
Terminated: May 1, 1994 |
Logic Board
Processor:
68030
Processor Speed:
33 MHz
PMMU:
Integrated
FPU:
opt.in Dock
Bus Speed:
33 MHz
Data Path:
32-bit
ROM Size:
1 MB
Level 1 Cache:
0.5K
Level 2 Cache:
none
Expansion Slots:
Modem, dock
Battery:
Duo, NiMH Type II
Memory
RAM Type:
Duo
RAM Slots:
1
Min - Max RAM:
4 MB -32 MB
Minimum RAM Speed:
70 ns
Install in groups of:
1
RAM Sizes:
4 - 20 MB
Onboard RAM:
4 MB
Note:
- Motherboard RAM cannot be addressed when
a 32 MB RAM card is installed.
Image Credit: Apple Inc.
Image Credit: Apple Inc.
Ports
ADB:
none
USB:
none
FireWire:
none
Video:
none
Floppy:
none
SCSI:
none
Geoports:
none
Ethernet:
none
AirPort Ready:
No
Mic Type:
none
Other ports:
Printer
Image Credit: Apple Inc.
Image Credit: Apple Inc.
Video
Display:
- 9.1" Grayscale active-matrix
(4-bit, 16 grays) LCD
Resolution (built-in LCD):
Storage
Standard CD-ROM:
none
Internal Hard Drive:
SCSI (200 MB)
Floppy Disk Drive:
none
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Duo with external HDI-20 floppy disk drive connected with
Duo Floppy Adapter
(Apple Inc.)
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Operating System
Addressing Modes:
24-bit or 32-bit
Original OS:
7.1
Original Enabler:
PowerBook Duo Enabler v1.0
AppleTalk Version:
57.0.4
Compatible MacOS:
7.1
7.1.1 (Pro)
7.5
7.5.1
7.5.3
7.5.5
7.6
7.6.1
For additional information on
operating systems:
See this article
Miscellaneous
Codename:
Ansel
Form Factor:
PowerBook Duo
Dimensions (Inches):
1.4 H x 10.9 W x 8.5 D
Average Weight (lbs):
4.2
Gestalt ID:
38
Original Price:
$2600 US
Comments
The PowerBook Duo 250, introduced on October 21, 1993, features a 33 MHz 68030 processor,
4 MB of RAM (expandable to 32 MB), and a 200 MB hard disk drive. The Duo 250 is
housed in a lightweight portable case with a sharp 9-inch grayscale active-matrix
display. The Duo 250 can be used as a laptop computer or inserted into a full-powered
desktop system called a Duo Dock. The Duo 250 has few ports and no internal floppy
or CD drive, but this can be expanded by using it with a Duo Dock or with a compatible
docking device like a MiniDock or Duo Floppy Adapter.
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