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Home > PowerBook and PowerBook Duo Specs > PowerBook 520c
Image Credit: Apple,
Inc.
Introduced: May 16, 1994
Logic Board Processor:
68LC040 Processor Speed:
25 MHz
The clock input runs at 50 MHz;
however, the processor itself is clocked at 25 MHz,
so technically it is only a 25 MHz processor.
PMMU:
Integrated FPU:
none Bus Speed:
25 MHz Data Path:
32-bit ROM Size:
2 MB Level 1 Cache:
8K Level 2 Cache:
none Expansion Slots:
Modem Battery:
PB500, NiMH Memory RAM Type:
PB5xx RAM Slots:
1 Min - Max RAM:
4 MB - 36 MB Minimum RAM Speed:
70 ns Install in groups of:
1 RAM Sizes:
4, 8, 12, 20, 32 MB Onboard RAM:
4 MB Image Credit: Macworld,
July 1994 Ports ADB:
1 USB:
none FireWire:
none Video:
mini-15 Floppy:
none SCSI:
HDI-30 Geoports:
none Ethernet:
AAUI-15 AirPort Ready:
No Mic Type:
Line in Other ports:
Printer, speaker Image Credit: Apple,
Inc. Image Credit: Apple,
Inc.
(Click) 1994 Apple Computer
Video Display:
9.5" Color dual-scan
(8-bit, 256 colors) LCD
Resolution (built-in LCD):
Resolution External Only (512K VRAM):
512 x 384, 8-bit 640 x 480, 8-bit 800 x 600, 8-bit 832 x 624, 8-bit
Storage Standard CD-ROM:
none Internal Hard Drive:
SCSI (160 - 320 MB) Floppy Disk Drive:
1.44 MB manual Operating System Addressing Modes:
32-bit Original OS:
7.1.1 Original Enabler:
PowerBook 500 Series Enabler AppleTalk Version:
57.0.4 Compatible MacOS:
7.1.1 For additional information on
operating systems:
See this article
(Macworld, July 94 ) The
500-series PowerBooks offered a full size keyboard for typing.
There was also a row of function keys as well as escape and
power-on keys along the top row. Missing were page up and
page down keys.
Miscellaneous Codename:
BlackBird LC Form Factor:
PowerBook 520 Dimensions (Inches):
2.3 H x 11.5 W x 9.7 D Average Weight (lbs):
6.4 Gestalt ID:
72 Original Price:
$2800, $2900, $4000
(Click) Apple Dealer Spec Sheets
Manuals at Apple.com:
PowerBook 520c
PowerBook PowerPC Upgrade Guide
PowerBook 520c Getting Started
PowerBook 520c User's Guide
Additional PowerBook 520c Information: PowerBook Print Ads System Software Recommendations Vectronic's Classic Macintosh Section Vectronic's PowerBook 520c
