This article describes the Apple PowerBook Duo 250 computer.

The PowerBook Duo 250 offers a high-speed processor, an active matrix screen, large RAM expansion, and desktop expansion in a package that weighs 4.2 pounds. It features a 68030 microprocessor that runs at 33 megahertz, and supports up to 24 megabytes of RAM. The PowerBook Duo 250 also includes a 9-inch (229-millimeter) backlit, active-matrix display.

The PowerBook Duo 250 can be transformed into a desktop Macintosh by attaching it to an optional PowerBook Duo Dock or MiniDock. You can then work with a large color display, expanded keyboard, printers, and network servers.

Features

Power and speed
* 33-MHz 68030 microprocessor

Memory
* 4MB of RAM, expandable to 24MB

Display
* Bright, backlit, active-matrix display (640 by 400 pixels)
* Full-page-width, 9-in. diagonal; 16-level gray scale
* Adjustable brightness and contrast controls

Battery life
* 2.5 to 6 hours on a single charge

Expansion
* Built-in high-speed serial port for peri-pheral devices, including LocalTalk network and printers
* Slots for internal modem and RAM
* Docking connector
* Optional PowerBook Express Modem

Usability
* Runs thousands of Macintosh applications
* Easy to set up, learn, use, and expand

System software
* System software version 7, with multitasking, file sharing, Balloon Help, TrueType fonts, and more

Networking
* Built-in LocalTalk networking
* File sharing without a dedicated server

Compatibility
* Reads and writes Macintosh, Windows, MS-DOS, OS/2, and ProDOS floppy disk formats with appropriate software


Ordering Information

PowerBook Duo 250 4/200
Order No. M1933LL/A
* PowerBook Duo 250 computer with 4MB of RAM and internal 200MB hard disk
* Battery and AC adapter
* System software version 7.1
* Complete setup, learning, and reference documentation
* Training software
* Limited warranty

Optional PowerBook Duo 250 configuration
Order No. M4189LL/A
* PowerBook Duo 250 computer with 12MB of RAM, internal 200MB hard disk and internal PowerBook Express Modem with Express Fax software

PowerBook Duo 4MB Memory
Expansion Kit*
Order No. M4184LL/A

PowerBook Duo 8MB Memory
Expansion Kit*
Order No. M4185LL/A

PowerBook Duo Fax/Data Modem
(U.S., Canada, Japan)
Order No. M0970LL/A

Express Modem for PowerBook Duo*
(U.S., Canada, Japan)
Order No. M4186LL/A

PowerBook Duo Rechargeable Battery
Order No. M1835LL/A

PowerBook Duo AC Adapter
Order No. M4174LL/A

PowerBook Duo Battery Recharger
Order No. M4178LL/A
Service Part 922-0576

Apple HDI-30 SCSI Disk Adapter
Order No. M2539LL/A

Apple HDI-30 SCSI System Cable
Order No. M2538LL/A

*Dealer installation recommended