Apple Macintosh PowerBook 145B vs Apple Macintosh PowerBook 170

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Macintosh PowerBook 145B compared with Macintosh PowerBook 170

	AppleMacintosh PowerBook 145B	AppleMacintosh PowerBook 170
Overview
Released
Released	June 1993	October 1991
Display
Screen size
Screen size	10″	10″
Resolution
Resolution	640 × 400	640 × 400
Touchscreen
Touchscreen	No	No
Display type
Display type	10-inch backlit supertwist passive-matrix monochrome LCD at 640 × 400	10-inch backlit active-matrix monochrome LCD, 640 × 400 pixels at 1-bit colour. Apple's 1991 product information rounds the diagonal to 10 inches; some later catalogues call it 9.8 inches.
Performance
Processor
Processor	Motorola 68030 25 MHz (PowerBook 145B)	68030 25 MHz (PowerBook 170)
CPU cores
CPU cores	1	1
Memory
Memory	4 MB	4 MB
Storage
Storage	40 MB to 80 MB (better)	40 MB
CPU
CPU	25 MHz Motorola 68030 without a floating-point coprocessor	25 MHz Motorola 68030 and 25 MHz Motorola 68882 floating-point coprocessor; a Power Saver mode could run the processor at 16 MHz on battery.
Memory type
Memory type	4 MB on the logic board, expandable to 8 MB with a memory card	4 MB original configuration, comprising 2 MB on the logic board and a 2 MB expansion card; 8 MB maximum. Apple's later support sheet lists 2 MB as the minimum across its service configurations.
Storage type
Storage type	Internal SCSI hard drive; Apple's contemporary catalogue offered 40 or 80 MB with a built-in 1.4 MB Apple SuperDrive floppy drive	Original 40 MB internal SCSI hard drive with a built-in 1.4 MB SuperDrive floppy drive. Apple's later support sheet lists 40–80 MB drives.
Battery and size
Battery life (maker's claim)
Battery life (maker's claim)	Up to 3 hours	Up to 3 hours
Weight
Weight	3.1 kg	3.03 kg (better)
Thickness
Thickness	58 mm	–
Width × depth
Width × depth	287 × 236 mm	–
Battery life detail
Battery life detail	Removable nickel-cadmium battery; Apple stated an average 2.5–3 hours of operation	Removable nickel-cadmium battery; Apple claimed 2–3 hours of use, with about 30 minutes more in its 16 MHz Power Saver mode.
Connections
Operating system
Operating system	macOS	macOS
Port detail
Port detail	ADB, HDI-30 SCSI, two serial ports and audio input/output; optional internal modem; no video output	One Apple Desktop Bus (ADB) port, HDI-30 SCSI connector, two RS-422 serial ports, mono audio input and stereo output. A 2400-baud internal modem was standard.
Keyboard
Keyboard	–	Built-in keyboard with a centred 30 mm trackball below the keys.
Trackpad
Trackpad	Built-in trackball	Built-in trackball.
In the box
In the box	–	System 7.0.1, battery and AC adapter. Apple dates the model's introduction to 21 October 1991; the technical sheet does not state a separate first-sale day.
Speakers
Speakers	Built-in speaker	–