|
 |
The Apple Macintosh computer - price and description
|
|
The Apple Macintosh
PowerBook 540c features a 33 MHz 68LC040 processor, 4 MB or
12 MB of RAM, a 320 MB or 500 MB hard drive, and support for
multiple batteries in a sleek portable case with a 9.5"
color active-matrix 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:
|
August 26, 1995
|
Processor Type:
|
68LC040
|
Processor
Speed:
|
33 MHz
1.
|
Processor
Upgrade:
|
N/A
2.
|
FPU:
|
N/A
|
System Bus
Speed:
|
33 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:
|
320 MB, 500 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:
|
2.5-4.0 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:
|
7.3 lbs.
|
Original Price:
|
$4800, $5000,
$5200
|
Est. Current
Price:
|
$100-$150 US
|
Notes:
|
1.
This model is somtimes designated as having a 66 MHz
processor,
since
the clock input runs at 66 MHz. However, the processor
itself
is
not "clock doubled", so technically it is only a 33 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
active-matrix (8-bit, 256 colors) LCD display.
5.
In inches, height x width x depth (while closed).
6.
Photo Credit: Apple Computer, Inc.
|
|
|
|