Macintosh PowerBook Duo 250
Codename: "Ansel"
Introduced: October 1992
Discontinued: May 1994
Processor: Motorola 68030
Processor Speed: 33 MHz
Cache: 0.5k L1
Data Path: 32 bit
System Bus: 33 MHz
Hard Drive Size: 80 - 160 MB
Media: None
Weight and Dimensions: 4.2 lbs, 1.4" H x 10.9" W x 8.5" D
Original Mac OS: Mac OS 7.1
Maximum Mac OS: Mac OS 7.6.1
Machine ID: 38
Motherboard RAM: 4 MB
Maximum RAM: 24 MB
Number of Sockets: 1 - PB Duo
Minimum RAM Speed: 70 ns
Graphics Card: None
Video Memory: None
Built-in Display: 9" LCD - 4 bit (16 Grays) 640x400 Active Matrix LCD
Display Connection: None
Slots: Modem, Dock (152-pin PDS)
Hard Drive Bus: SCSI
Expansion Bays: n/a
Modem: None
Airport: None
Bluetooth: None
PRAM: n/a
Power: 25 Watts
Battery: NiMH
ADB: None
Serial: 1
SCSI: HDI-30
USB: None
FireWire: None
Ethernet: None
Infrared: None
Sound In: Mono 8 bit (built-in mic)
Sound Out: Mono 8 bit (built-in speaker)
History: Announced in October 1993, the Duo 250 was exactly the same as the Duo 230, except it had a 4-bit active-matrix screen. It sold for $2,500 U.S. and was discontinued in May 1994.

