Macintosh Mouse (original, beige, 1984)

This original Macintosh Mouse, Model M0100, shipped with a Macintosh 512K. This mouse was compatible with the Apple Lisa and was the same mouse that shipped with the original Macintosh. 

The original Macintosh Mouse used a DE-9 connector and remained unchanged until 1987 when its color was altered to Platinium (with Smoke accents) to match the Macintosh Plus. Like all early Macintosh mouse designs, it used only one button to control the famously easy-to-use Macintosh operating systems of the time.

Source: Wikipedia

Apple Mouse (original Mac, M0100, 1984)

The Macintosh Mouse used a rubber roller ball and a single, rectangle-shaped button. The first version of the Macintosh Mouse was beige to match the color of the original Macintosh, but was offered in platinum beginning in 1987 to match other Apple computers of the time.

This Macintosh Mouse design was based upon the mouse that shipped with the Lisa. The Lisa mouse also used the DE-9 connector and had a single button. The Lisa mouse used a steel ball for tracking.

Source: Wikipedia.com