PowerBook Buyer's Guide

PowerBook Duo 210

The 210 was the first PowerBook Duo. Duos are slim, the 210 weights only 4.2 pounds, but they do not include a floppy drive or many of the standard ports. Instead, you slide a Duo into a dock on your desktop which has all the standard connectors. Duos are really meant for travellers that demand lightweight equipment and don't mind leaving a few of the bells and whistles at home while they're on the road. The other major difference between the Duos and other early PowerBooks like the 100-series is the extremely small trackball, about the size of a marble. Early PowerBook users were evenly divided about the Duos, with half fiercely devoted to them, and the other half seeing only their limitations.


At the time: B-

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

Passive-matrix 16-level grayscale
640x400 resolution

4.2 pounds

Apple's Specifications:

Logic Board Ports Power
Processor: 68030, 25 MHz
PMMU: integrated
FPU: opt. in Dock
Data Path: 32-bit, 25 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 I
Soft Power: yes
Memory Video Memory
Logic Board: 4 MB
RAM Slots: 1, Duo
Min - Max RAM: 4 MB - 24 MB
Min RAM Speed: 70 ns
RAM Sizes: 4-20 MB
Install in Groups of: 1
Resolution Video Memory
built-in LCD screen
(built in)
512 x 384 n/a-bit
640 x 400 4-bit
640 x 480 n/a-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: 10/19/1992
Discontinued: 10/21/1993
Form Factor: PowerBook Duo
Gestalt ID: 29
Weight (lbs): 4.2
Dimensions (in): 1.4 H x 10.9 W x 8.5 D
Addressing Modes: 24-, 32-bit
Orig SSW: 7.1
Orig Enabler: System Enabler 201
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: 80MB
Int HD Interface: SCSI
Orig CD Speed n/a
Int CD Support: