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Apple Macintosh PowerBook 100 vs Apple Macintosh PowerBook Duo 250

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

AppleMacintosh PowerBook 100AppleMacintosh PowerBook Duo 250
Overview
ReleasedOctober 19911993
Display
Screen size9″9″
Resolution640 × 400640 × 400
TouchscreenNoNo
Display type9-inch backlit FSTN monochrome LCD, 640 × 400 pixels at 1-bit colour (Apple service guide).Backlit active-matrix LCD with 16 grey levels. Apple's product description and technical table specify a 9-inch diagonal; the developer note gives a 192 × 120 mm active pixel area
Performance
Processor68000 16 MHz (PowerBook 100)Motorola 68030 33 MHz (PowerBook 165)
CPU cores11
Memory2 MB4 MB or 12 MB
Storage20 MB to 40 MB200 MB
CPU16 MHz Motorola 68000; no FPU or processor cache.Motorola 68030 at 33 MHz, with integrated memory-management unit; no built-in floating-point coprocessor. An optional dock provides a maths coprocessor
Memory type2 MB on the logic board and one expansion slot; 8 MB maximum.4 MB on the logic board and one Duo expansion-card slot; maximum 24 MB. Apple kits expand to 8 or 12 MB; larger capacities require third-party cards
Storage type20 MB or 40 MB internal SCSI hard drive; no built-in floppy drive. The HDI-20 port accepts an external floppy drive.Internal 200 MB SCSI drive in Apple's 4/200 and 12/200 ordering configurations. The developer note mentions a 120 MB option without an ordering configuration. External floppy drive requires a Duo Floppy Adapter or MiniDock
Battery and size
Battery life (maker's claim)Up to 4 hoursUp to 6 hours
Weight2.3 kg1.9 kg
Thickness–36 mm
Width × depth–277 × 216 mm
Battery life detailSealed lead-acid battery; Apple claimed 2–4 hours of use before recharging.Removable Type II nickel-metal hydride battery; Apple's technical table claims 2.5–6 hours. Its later developer-note feature list and block diagram contain conflicting battery, colour-display and memory claims; the exact model's technical table controls these specifications
Connections
Operating systemmacOSmacOS
Port detailOne Apple Desktop Bus (ADB) port, HDI-20 external floppy connector, HDI-30 SCSI connector, printer serial port and speaker output. No built-in Ethernet or video output.RS-422 serial/LocalTalk, 152-pin docking connector, power input and optional internal fax/data modem. External video, SCSI and floppy connections require docking accessories
External displays–Optional PowerBook Duo Dock or Duo MiniDock provides external video and desktop connections
Keyboard–Built-in keyboard with two-level tilt adjustment and Caps Lock indicator
TrackpadBuilt-in trackball.19 mm trackball with two buttons
Speakers–Built-in speaker; 8-bit monophonic sound input/output at 11 or 22 kHz
Microphones–Built-in omnidirectional electret microphone, documented in the exact-model technical table despite the support summary's Mic Type none
In the boxOriginal system software was System 7.0.1. Apple dates the model's introduction to 21 October 1991; its technical sheet does not state a separate first-sale day.Computer, battery, AC adapter, System 7.1 software and documentation. The 12/200 configuration adds an internal Express Modem. Maker introduction was 21 October 1993; The Mac December 1993 current buying guide confirms retail presence that year without an exact first-sale month

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