Macintosh PowerBook Duo 270c
Codename: "Escher"
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: 240 MB
Media: None
Weight and Dimensions: 4.8 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: 77
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: 8.4" 16 bit 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 270c further improved on previous Duos by adding a 68883 FPU to its 33 MHz 68030 processor. It was also the first Duo to include an active-matrix 16 bit screen. It was priced at $3,100 U.S. and was discontinued in May 1994.

