Macintosh PowerBook Duo 280c
Source: wikimedia.org - Macintosh PowerBook Duo 280c

Macintosh PowerBook Duo 280 & 280c

The Apple PowerBook Duo 280 features a 33 MHz 68LC040 processor, 4 MB or 12 MB of RAM and a 240 MB hard drive in a compact, a lightweight portable case with a sharp 9.1″ grayscale active-matrix display. The PowerBook Duo 280 looks essentially the same as the Duo 250 it replaced, but the 280 has a faster 68LC040 processor, higher maximum RAM capacity, and enhanced battery design.

The Apple PowerBook Duo 280c features a 33 MHz 68LC040 processor, 4 MB or 12 MB of RAM and a 320 MB hard drive in a compact, lightweight portable case with a sharp 8.4″ color active-matrix display. The PowerBook Duo 280c looks essentially the same as the Duo 270c it replaced, but the 280c has a faster 68LC040 processor, higher maximum RAM capacity, and an enhanced battery design.

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.

History of Macintosh PowerBook Duo 280 & 280c is provided by EveryMac

Macintosh PowerBook Duo 280 & 280c – General information

Overview
IntroducedMay 1994
DiscontinuedNovember 1994 (280)
January 1996 (280c)
Model Identifier102 (280)
103 (280c)
Model NumberM7777
Order NumberM2797LL/A
M2798LL/A
M2329LL/A
M2332LL/A
Price$2,600
$3,700

$4,750
ColorsDark Grey
Weight4.2 Ibs. (280) / 4.8 Ibs. (280c)
1.905 KG (280) / 2.177 KG (280c)
Dimensions1.4” (280) / 1.5″ (280c) H x 10.9” W x 8.5” D
3.55 cm (280) / 3.81 cm (280c) H x 27.68 cm W x 21.59 cm D
Hardware
Processor
ProcessorMotorola 68LC040
Processor Speed33 MHz
ArchitectureUnknown
Number of Cores1
System Bus33 MHz
Cache8 KB L1
CoprocessorNone
Storage & Media
Storage240 MB (280)
320 MB (280c)
MediaNone
Memory
Built-in Memory4 MB
Maximum Memory40 MB
Memory Slots1 – Duo
Minimum Speed70 ns
ROMUnknown
Interleaving SupportNo
Display
Built-in Display9.1″ grayscale active-matrix 4-bit LCD (280)
8.4″ color active-matrix 16-bit LCD (280c)
Resolutions640 x 400 (280)
640 x 480 8-bit or 640 x 400 16-bit (280c)
Graphics
Graphics CardNone
Graphics MemoryNone
Display ConnectionNone
Expansion
Expansion SlotsModem
Dock (152-pin PDS)
Hard Drive InterfaceSCSI
BaysUnknown
Connections
Wi-FiNone
EthernetNone
ModemInternal modem/fax card
BluetoothNone
ADBNone
Serial1
SCSIHDI-30
Floppy PortNone
Audio In1 – 3.5-mm analog input jack
1 – Built-in microphone
Audio Out1 – 3.5-mm analog output jack
1 – Built-in speaker
InfraredNone
DisplayNone
Keyboard and trackpad
KeyboardBuilt-in 64-key (U.S.) or 64-key (ISO) 3.0-mm travel keyboard
TrackpadBuilt-in 25-mm trackball pointing device
Software
Original OSSystem Software 7.1 (PowerBook Duo Enabler v2.0)
Maximum OSMac OS 8.1
FirmwareMacintosh ROM
Power
System BatteryPowerBook Duo Type III (NiMH)
Backup BatteryUnknown
Maximum Continuous Power25 W
Line VoltageUnknown
Power AdapterUnknown

Source: EveryMac, Wikimedia, Apple

Photos and text is used under the Creative Commons Attribution Share-Alike License