Apple Macintosh PowerBook 520 vs Apple Macintosh PowerBook 520c

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Macintosh PowerBook 520 compared with Macintosh PowerBook 520c

	AppleMacintosh PowerBook 520	AppleMacintosh PowerBook 520c
Overview
Released
Released	May 1994	May 1994
Display
Screen size
Screen size	9.5″	9.5″
Resolution
Resolution	640 × 480	640 × 480
Touchscreen
Touchscreen	No	No
Display type
Display type	9.5-inch backlit FSTN passive-matrix greyscale LCD with 16 shades of grey	9.5-inch backlit dual-scan passive-matrix colour LCD with 256 colours
Performance
Processor
Processor	Motorola 68LC040 50 MHz (PowerBook 520)	Motorola 68LC040 50 MHz (PowerBook 520)
CPU cores
CPU cores	1	1
Memory
Memory	12 MB	12 MB
Storage
Storage	240 MB	240 MB to 320 MB (better)
CPU
CPU	Motorola 68LC040 running internally at 50 MHz with a 25 MHz bus; 8 KB L1 cache and no floating-point unit	Motorola 68LC040 with 50 MHz internal processor speed and 25 MHz bus interface; no floating-point unit
Memory type
Memory type	4 MB on the logic board, expandable to 36 MB; Apple's Japanese configurations supplied 12 MB	4 MB on the logic board, expandable to 36 MB; Apple's Japanese bundled configurations contain 12 MB
Storage type
Storage type	Internal SCSI hard drive and 1.4 MB Apple SuperDrive floppy drive; Apple lists 160–240 MB drives in its English support sheet and 240/320 MB Japanese configurations	Internal SCSI hard drive and 1.4 MB Apple SuperDrive floppy drive; Japanese configurations pair 12 MB RAM with 240 or 320 MB storage. English support also lists a 160 MB drive
Battery and size
Battery life (maker's claim)
Battery life (maker's claim)	Up to 3.5 hours	Up to 3 hours
Weight
Weight	2.9 kg	2.9 kg
Thickness
Thickness	57 mm	57 mm
Width × depth
Width × depth	292 × 245 mm	292 × 245 mm
Battery life detail
Battery life detail	Removable nickel-metal hydride intelligent battery; Apple claimed 3.5 hours per battery, with room for a second battery	Nickel-metal hydride intelligent battery; Japanese specification claims three hours per battery, with one supplied and room for two. April 1995 Apple Facts instead gives 2–4 hours on one battery and 4–7 hours on two; 2.9 kg includes one battery
Connections
Operating system
Operating system	macOS	macOS
Port detail
Port detail	ADB, RS-422 serial/LocalTalk, HDI-30 SCSI, AAUI Ethernet, mini-15 video and stereo audio input/output; an optional PCMCIA module supported two Type II or one Type III card	ADB, RS-422 serial/LocalTalk, AAUI Ethernet, HDI-30 SCSI, stereo audio input/output, external video and power input; optional internal modem and PCMCIA module supporting two Type II or one Type III card
External displays
External displays	Built-in video output supports mirroring or an extended desktop with an optional Apple video adapter cable	Mirroring and extended desktop through an optional video adapter cable
Trackpad
Trackpad	Built-in solid-state trackpad in place of a trackball	Built-in solid-state trackpad
Speakers
Speakers	Two built-in stereo speakers and a microphone	Two stereo speakers and a built-in microphone
In the box
In the box	Apple's Japanese 12 MB/240 MB configuration included one battery, power adapter and PowerBook Mobility Bundle software	Japanese 12 MB/240 MB bundle includes one intelligent battery, power adapter, KanjiTalk 7.5 media and PowerBook Mobility Bundle; the 12 MB/320 MB bundle adds Express Modem II