PowerBook Buyer's Guide

PowerBook Duo 270c

The 270c is bascially the Duo equivalent of the 180c. It has a sharp, bright, active-matrix screen capable of displaying 256 colors and a relatively speedy (for the time) 33 MHz 68030 processor. This is a good choice for the mobile professional who demands lightweight and a color screen, but who just doesn't have the funds to buy a newer 2400c or 2300c. The 270c has a larger hard drive and more available memory than previous Duos and can hold its own even today when using basic applications. I'd recommend this laptop to anyone looking for a cheap Duo - spend the extra money on a 270c and pass up the previous Duos.


At the time: A-

1 serial
internal modem
processor direct slot (PDS) for dock or floppy drive

Active-matrix 256 colors
640x480 resolution

4.8 pounds

Apple's Specifications:

Logic Board Ports Power
Processor: 68030, 33 MHz
PMMU: integrated
FPU: 68882
Data Path: 32-bit, 33 MHz
L1 Cache: 0.5K
L2 Cache: none
2nd Processor: none
Slots: modem, dock
ADB: none
Video: none
Floppy: none
SCSI: none
Geoports: none
Ethernet: none
Mic Type: none
Other Ports: Printer,
Max Watts: 25
Amps: 1.04
BTU per Hr: 85.5
Voltage: 100-240
Freq Range: 50-60 Hz
Battery Type: Duo, NiMH Type II
Soft Power: yes
Memory Video Memory
Logic Board: 4 MB
RAM Slots: 1, Duo
Min - Max RAM: 4 MB - 32 MB
Min RAM Speed: 70 ns
RAM Sizes: 4-28 MB
Install in Groups of: 1
Resolution Video Memory
built-in LCD screen
(built in)
512 x 384 n/a-bit
640 x 400 16-bit
640 x 480 8-bit
800 x 600 n/a-bit
832 x 624 n/a-bit
1024 x 768 n/a-bit
1152 x 870 n/a-bit
1280 x 1024 n/a-bit
Physical Software Storage
Introduced: 10/21/1993
Discontinued: 5/1/1994
Form Factor: PowerBook Duo
Gestalt ID: 77
Weight (lbs): 4.8
Dimensions (in): 1.5 H x 10.9 W x 8.5 D
Addressing Modes: 24-, 32-bit
Orig SSW: 7.1
Orig Enabler: PowerBook Duo Enabler v1.0
ROM ID: $067C
ROM Ver: n/a
ROM Size: 1MB
AppleTalk Ver: 57.0.4
Mac OS
7.1.1 (Pro)
Floppy Size: none
Floppy Inject: n/a
Min. Int HD Size: 240MB
Int HD Interface: SCSI
Orig CD Speed n/a
Int CD Support: