When you use a computer, do you think about the mouse? This little plastic tool makes using computers so much1. It has a history that goes back nearly 50 years.
In 1963, American computer pioneer Douglas Engelbart2a prototype (原型) mouse. On April 27, 1981, the first computer system with a mouse and user interface (界面)3. This design plays an important part in the personal computing world4today.
The invention of the mouse was the beginning of a new age.5the mouse, computer users had to use complex (复杂的) tools and difficult code (编码) to connect with their computers .
Some say6like the touchscreen (触摸屏) iPad will mean the end of the mouse, but others believe the mouse will be around for a while longer.
"It's easy to7 , and you don't need to take your eyes off the screen to use it. These are the8for its long life," says Ken Perlin, a professor at New York University.
Scientists are now working on adding9things to the mouse. Recently, they made a "soft mouse", which is made from a soft plastic material. Using10is like touching a cat, so some computer users have started calling it a "cat".
There is an internet saying: One day the "cat' may eat the "mouse".
