Ok, so here is more than you wanted to know about keyboards and the mouse.
The QWERTY keyboard was designed to be inefficient because if people typed too fast, the typewriter would jam. To alleviate this problem, the keys were arranged so that many words would be typed with only one hand, few words can be typed on the home row and the left hand gets the majority of the work.
The DVORAK keyboard, using a different setup, improves efficiency by at least 70%. The keyboard is designed so that the middle row of keys includes the most common letters. In addition, common letter combinations are positioned in such a way that they can be typed quickly.
see Dvorak keyboard
The computer mouse was invented by Dr. Douglas C. Engelbart from Stanford Research Institute in 1963. It was constructed of wood, metal wheels and 1 button. Oh, it was called the bug – which was then changed to mouse because the cord on the early models resembled the mouse tail. The patent listed the device as “X-Y Position Indicator for a Display System”.
In 1984, the mouse was delivered to the public with the Apple MacIntosh computer. But, what is the future of the mouse – well. I’m sure the trackball will go away and the optical and wireless will be the standards. Voice recognition may come into play, but also gyroscopic technology will be big. Gyroscopic is the ability to translate wrist movements to the cursor location. We’ve come along way, who knows what the future devices will look like!