PowerBook Duo 250 Specs: EveryMac.com

Apple PowerBook Duo 250 Specs

All PowerBook Duo Models | All 1993 Models | Dynamically Compare This Mac to Others

The Apple PowerBook Duo 250 features a 33 MHz 68030 processor, 4 MB or 12 MB of RAM and a 200 MB hard drive in a compact, lightweight portable case with a sharp 9.1" grayscale active-matrix display.

The PowerBook Duo 250 looks essentially the same as the Duo 230, but it has a significantly better active-matrix display and an improved battery design for longer runtime.

The PowerBook Duo series provides both a portable computer and the and the option to set up a full-powered desktop Macintosh by plugging the notebook into a compatible Duo Dock.

Tech Specs
Ports

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Introduction Date:

October 21, 1993

Discontinued Date:

May 16, 1994

Details:

The "Introduction Date" refers to the date a model was introduced via press release. The "Discontinued Date" refers to the date a model either was replaced by a subsequent system or production otherwise ended.

Also see: All Macs introduced in 1993.

Processor Speed:

33 MHz

Processor Type:

68030

Details:

This model has a 32-bit processor and a 32-bit data path.

Processor Upgrade:

Soldered

FPU:

None*

Details:

*When docked, this model can use an FPU, if provided by a compatible Duo Dock.

System Bus Speed:

33 MHz

Cache Bus Speed:

N/A

Details:

N/A

ROM Type:

Macintosh ROM

ROM Size:

1 MB

Details:

N/A

L1 Cache:

0.5k

L2 Cache:

N/A

Details:

N/A

RAM Type:

DRAM Card*

Min. RAM Speed:

70 ns

Details:

*Supports a single 70 ns DRAM card.

Standard RAM:

4 MB, 12 MB

Maximum RAM:

28 MB*

Details:

*With a 32 MB memory card installed, the 4 MB of onboard memory cannot be addressed.

Also see: Actual Max RAM of All G3 & Later Macs.

Motherboard RAM:

4 MB

RAM Slots:

1 (Duo)

Details:

N/A

Video Card:

Dedicated*

VRAM Type:

Onboard

Details:

*Video function provided by onboard 80 ns VRAM.

Standard VRAM:

N/A

Maximum VRAM:

N/A

Details:

The video cannot be upgraded.

Built-in Display:

9.1" Grayscale

Native Resolution:

640x400

Details:

9.1" grayscale active-matrix (4-bit, 16 grays) LCD with a 640x400 native resolution.

2nd Display Support:

N/A

2nd Max. Resolution:

N/A

Details:

N/A

Standard Hard Drive:

200 MB

Int. HD Interface:

SCSI

Details:

*By default, this model is equipped with a 200 MB internal SCSI hard drive.

Standard Optical:

None

Standard Disk:

None

Details:

N/A

Standard Modem:

14.4k (Internal)*

Standard Ethernet:

None

Details:

*Internal modem provided standard by configuration M4189LL/A.

Expansion Slots:

Modem, Dock (PDS)

Expansion Bays:

None

Details:

152-pin PDS provides connectivity to compatible docks.

Case Type:

Notebook

Form Factor:

PowerBook Duo 210

Details:

N/A

Apple Order No:

M1933LL/A*

Apple Subfamily:

PowerBook Duo 250

Details:

*M1933LL/A refers to this model configured with 4 MB of RAM. The configuration with 12 MB of RAM and an internal modem is assigned order number M4189LL/A.

Apple Model No:

M7777

Gestalt ID:

Details:

Please note that these identifiers refer to more than one model.

Also see: All Macs with the M7777 Model Number and 38 Gestalt ID.

For more about identifiers and how to locate them on modern Macs, please refer to EveryMac.com's Mac Identification section.

Battery Type:

Duo NiMH Type II

Battery Life:

2.0-6.0 Hours

Details:

N/A

Original Mac OS:

7.1

Supported Mac OS:

7.1-7.5.1, 7.5.3-7.6.1

Details:

Earlier and later versions of the Macintosh System/Finder and Mac OS are not supported.

Dimensions:

1.4 x 10.9 x 8.5

Avg. Weight:

4.2 lbs (1.9 kg)

Details:

In inches while closed - height by width by depth, (3.6 cm, 27.7 cm, 21.6 cm).

Original Price (US):

US$2600

Est. Current Retail:

N/A

Details:

Photo Credit: MacUser Magazine, December 1993.

Click on a category for additional details. The most commonly needed info is "open" by default, but all info is important. The icons correspond with the icons for each port on the computer.

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Video (Monitor):

None

Floppy (Ext.):

None

Details:

N/A

ADB:

None

SCSI:

None

Details:

N/A

Serial (Standard):

Serial (Geoport):

None

Details:

Single serial port can be used with either a serial printer or modem.

Modem:

None*

Ethernet:

None

Details:

*Internal modem provided standard by configuration M4189LL/A.

S-Video Input:

None

S-Video Output:

None

Details:

N/A

Microphone:

None

Sound In:

None

Details:

N/A

Sound Out:

None

Headphone:

None

Details:

N/A

Security (Lock):

None

Joystick (PC):

None

Details:

N/A

Power:

N/A

Power Adapter:

Details:

85V-270V AC, 47-63 Hz Frequency, 25 Max Watts.

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