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Used Apple Macintosh computers

 

  The Apple Macintosh computer - price and description

Apple Mac PowerBook 520c

The Apple Macintosh PowerBook 520c features a 25 MHz 68LC040 processor, 4 MB or 12 MB of RAM, a 160 MB, 240 MB, or 320 MB hard drive, and support for multiple batteries in a sleek portable case with a 9.5" color dual-scan display. The PowerBook 500 series was the first line of PowerBooks to have a "trackpad" where the cursor followed the movement of your finger. The trackpad was a revolutionary input device, and has been used since in the vast majority of modern laptops.


Introduction Date:

May 16, 1994

Discontinued Date:

September 16, 1995

Processor Type:

68LC040

Processor Speed:

25 MHz 1.

Processor Upgrade:

N/A 2.

FPU:

N/A

System Bus Speed:

25 MHz

Lookaside Bus Speed:

N/A

ROM Size:

2 MB

Data Path:

32-bit

Level 1 Cache:

8k

Level 2 Cache:

N/A

RAM Type:

70 ns DRAM card

VRAM Type:

Built-in

Standard RAM:

4 MB, 12 MB

Maximum RAM:

36 MB

Motherboard RAM:

4 MB

RAM Slots:

1 (PB 500 series)

Standard VRAM:

512k 3.

Maximum VRAM:

512k 3.

Standard Hard Drive:

160, 240, 320 MB

Int. Hard Drive Type:

SCSI

Standard CD-ROM:

N/A

Standard Disk:

1.44 MB (manual)

Standard Modem:

14.4k (optional)

Standard Ethernet:

AAUI-15

Case Type:

Portable (Gray)

Form Factor:

PowerBook 520

Exp. Slots:

Modem

Exp. Bays (Free):

None

Battery Type:

PB 500 Series NiMH

Battery Life:

2.0-3.5 hours

Built-in Display:

9.5" Color 4.

Supported MacOS:

7.1.1-8.1

Dimensions:

2.3 x 11.5 x 9.7 5.

Avg. Weight:

6.4 lbs.

Original Price:

$2800, $2900, $4000

Est. Current Price:

$100-$125 US

Notes:

1. This model is somtimes designated as having a 50 MHz processor,
since the clock input runs at 50 MHz. However, the processor itself
is not "clock doubled", so technically it is only a 25 MHz processor.

2.
Upgrades and accelerators are available.
3.
512k of VRAM supports an external color monitor (8-bit, 256 colors).
4.
9.5" Color dual-scan (8-bit, 256 colors) LCD display.
5. In inches, height x width x depth (while closed).
6. Photo Credit: Apple Computer, Inc.