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Mouse Systems A+ Mouse

Mouse Systems developed the A+ Mouse for the Apple IIc, the c standing for a compact version of Apple's IIe computer. The Apple IIC (Apple //c or Apple IIc) was the first computer designed to be portable. A+ Mouse provides an optical alternative to Apple's own Apple Mouse IIc, a ball mouse. According to Apple's preferred mouse style, the A+ has only one button. Except for the single button, it looks like other M-2 models. Its serial number begins with M2.

Mouse Systems logoThe MOUSE SYSTEMS brand on the back of the A+ Mouse is accompanied by a holey cheese wedge icon, as do other M-2 mouse models. Mouse Systems logo applied for trademark 1983On the box, however, the MOUSE SYSTEMS brand appears in block italic font with the two triangular styled mouses in outline and solid. This logo appears on M-3 and M-4 models, suggesting this A+ mouse came later than the //c's April 1984 release date.

The A+ came without an external power supply. Intending to be a portable, the IIc computer had an integrated serial port into which the mouse connects directly to the computer with a DE-9-pin plug, receiving its power from the computer. The external power supply was eliminated for the M-3 Mouse System mouses and thereafter. Perhaps the A+ development fostered that advancement.

Mouse Systems A+ Mouse for the Apple IIc.
The bottom of the Mouse Systems A+ Mouse for the Apple IIc matches the diagram on its box. On the mouse bottom, the two oblong holes for the LEDs are parallel, not slanted as on the M-1 model.

The box proclaims that, "A+ Mouse glides quietly and accurately over the mouse pad with no skipping." And, "Optical mouse technology means no moving parts, long life and maintenance-free operation."

The pad is the reflective gridded metal desk pad that came with the M-2 Mouse Systems mouses.

Mouse Systems A+ Mouse on an Apple IIc.
Mouse Systems A+ Mouse on an Apple IIc courtesy of the Montana Museum of Technology collection.

This Mouse Systems A+ Mouse is provided through the generosity of the Montana Museum of Technology.

Mouse Systems A+ Mouse for the Apple IIc.
Photo of A+ Mouse for the Apple IIc and its box.

Mouse Systems A+ Mouse for the Apple IIc.
Mouse Systems A+ Mouse for the Apple IIc, side view, beside its box.

Mouse Systems A+ Mouse for the Apple IIc connects with a DE-9-pin plug.
Mouse Systems A+ Mouse for the Apple IIc connects with a DE-9-pin plug for a serial port.

The labels on the bottom of this A+ Mouse read:

Assembled in MEXICO
IMEC

MOUSE SYSTEMS (cheese icon}

U.S. PATENT 4364035

Santa Clara, CA 95051
M2052702
FCC ID CWE7VT2

Connecting the Mouse to the Apple IIc Computer
Connecting the Mouse to the Apple IIc Computer from Apple Mouse IIc User's Manual by Apple 1984.