In 1964, Douglas Engelbart of the Stanford Research Institute (SRI) invented what became known as the computer mouse. It was called the mouse because it 'chased' the cursor, then known as CAT, on the screen:

In 1964, Douglas Engelbart of the Stanford Research Institute (SRI) invented what became known as the computer mouse. It was called the mouse because it 'chased' the cursor, then known as CAT, on the screen: