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NASA timed a group of volunteers in doing those tasks with the various devices. For example, the computer would generate an object in a random position on the screen, and a cursor somewhere else. They timed how long it took the users to move the cursor to the object. It quickly became clear that the mouse out-performed all the others. -
The mouse had a plastic casing on a metal base plate. Although the casing was originally designed for the cord to be attached to the wrist side of the device, it is seen here with the cord coming out from the other end. -
a mouse device named Rollkugelsteuerung (German for "rolling ball control") was shown in a sales brochure by the German company AEG-Telefunken as an optional input device -
Bill English developed the design further by inventing what is known as the "Ball Mouse" that we know today. The ball replaced the wheels and was capable of monitoring movement in any direction. The ball came into contact with two rollers that in turn spun wheels with graduations on them that could be turned into electrical pulses representing direction and speed. -
The first cordless mouse was shipped in September, 1984, the Metaphor computer also had a cordless keyboard and function keypad. The mouse was built for Metaphor by Logitech and used infra-red (IR) signals to transmit mouse data to the computer. The problem with such devices that used IR technology was that, in order to work, they needed a clear line of sight between the mouse and the computer’s receiver, a potential problem on a cluttered desk. -
the first mouse developed by HP in 1984 -
A rotational mouse is a type of computer mouse which attempts to expand traditional mouse functionality. The objective of rotational mice is to facilitate three degrees of freedom -
A surface-independent coherent light optical mouse design was patented by Stephen B. Jackson at Xerox in 1988. -
Also known as bats, flying mice, or wands, these devices generally function through ultrasound and provide at least three degrees of freedom. Probably the best known example would be 3Dconnexion ("Logitech's SpaceMouse") from the early 1990s. -
As the name suggests, this type of mouse is intended to provide optimum comfort and avoid injuries such as carpal tunnel syndrome, arthritis, and other repetitive strain injuries. It is designed to fit natural hand position and movements, to reduce discomfort. When holding a typical mouse, the ulna and radius bones on the arm are crossed. Some designs attempt to place the palm more vertically, so the bones take more natural parallel position. Some limit wrist movement.