| Processor |
Motorola
MC 68000 running at approximatly 8 Mhz. |
| Memory |
Delivered
with 1 MB, but can be upgraded to 4 MB. Has four SIMM-slots with
30-pins which recieves with a speed of 150 ns (nano seconds). Must
be upgraded with two SIMMs at a time. |
| Storage
capability |
Internal
800k disk drive. Has SCSI-port for connecting a harddrive and a
port for using an external diskdrive. |
| Screen |
Built
in 9" B/W screen with a resolution of 512x324 pixels. The Macintosh
Plus can not be connected to external screens. |
| Communications |
Built
in LocalTalk through the serial Printer port. Also has a Modem port
but that only offers 57 600 bps with handshaking on the output,
not on the input. The serial port can only handle 9600 bps*
and offers no support for Geoport. |
| System |
Requires
system 3.2, and can be used with Mac OS 7.5.5. |
| Connection
ports |
The
Plus was the last Mac with keyboard attached via coiled telephone-like
cable, and thelast Mac with mouse attached via DB-9 connector, but
first Mac with DIN-8 serial ports. And one other feature was important:
the Plus was the first Mac with SCSI, using DB-25 connector on back
of computer, but this connection was pretty slow. |
| RAM |
1
MB, expandable to 4 MB using pairs of 256 KB or 1 MB 150ns 30-pin
SIMMs (memory upgrade requires clipping one or two resistors; cannot
use two-chip 1 MB SIMMs). On a Plus When 1MB SIMMs are installed,
the 256KB resistor must be clipped to enable recognition of the
higher density SIMMs. |
| ROM |
128kb |
| PRAM
battery |
4.5V
#523 |
| Gestalt
ID |
4 |
| Addressing |
24-bit
only |
| Weight |
16.5
lb
8 kg |
| Size
(HxWxD) |
13.6"
x 9.6" x 10.9"
34,5cm x 24,4cm x 27,7cm |
| Performance |
0.8
(relative to SE); 0.7 MIPS |
| Upgrade |
although
I heard you could upgrade it by putting an SE motherboard in it
( by making it fit ), It would be pointless due to the fact it wouldn't
be a Mac Plus anymore ( - Zack ) estimated current value, base unit:
US$15 |
| Introduced |
Jan
16 1986 at a retail price of: $2 600 |
| Lifetime |
The
Mac Plus was produced in 4 years and 10 month, Apple's longest lived
Macintosh. |
| Terminated |
Oct
15 1990 |
|
|
| * |
Serial
Port on a Plus is limited to 9600 only when heavy Appletalk is occuring.
If you are not on an appletalk network, then you can use your modem
at 19600 bps easily. If you're appletalking on the other port though,
9600 is probably the best you will get.
Thank Andrew Napper for this information. |
