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Image Credit: Apple Inc.
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Introduced: October 21, 1993
Terminated: May 1, 1994 |
Logic Board
Processor:
68030
Processor Speed:
33 MHz
PMMU:
Integrated
FPU:
68882
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 - 28 MB
Onboard RAM:
4 MB
Note:
- Motherboard RAM cannot be addressed when
a 32 MB RAM card is installed.
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.
Video
Display:
- 8.4" Color active-matrix
(16-bit, thousands of colors) LCD
Resolution (built-in LCD):
- 640 x 400, 16-bit
- 640 x 480, 8-bit
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(Macworld, December 1993) The PowerBook
270c used a color active matrix screen. In the above image,
it is displaying 256 colors (8-bit, 640 x 480). The 270c
had the capability to display up to 32,768 colors (16-bit),
but only in 640 x 400 mode. |
Storage
Standard CD-ROM:
none
Internal Hard Drive:
SCSI (240 MB)
Floppy Disk Drive:
none
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:
Escher
Form Factor:
PowerBook Duo
Dimensions (Inches):
1.5 H x 10.9 W x 8.5 D
Average Weight (lbs):
4.8
Gestalt ID:
77
Original Price:
- $3100 US, 4 MB RAM, 240 MB hard drive
- $3600 US, 12 MB RAM, 240 MB hard drive, Express Modem Card
Comments
The PowerBook Duo 270c, introduced on October 21, 1993, features a 33 MHz 68030 processor
with integrated 68882 FPU, 4 MB of RAM (expandable to 32 MB), and a 240 MB hard disk drive.
The Duo 270c is housed in a lightweight portable case with a sharp 8.4-inch color active-matrix
display. The Duo 270c can be used as a laptop computer or inserted into a full-powered
desktop system called a Duo Dock. The Duo 270c 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.
Additional PowerBook Duo 270c Information:
Vectronic's PowerBook Duo 270c
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