Final answer:
The first PC compatible mouse was introduced in 1983. Apple popularized the use of mice with the Macintosh computer in 1984.
Step-by-step explanation:
The first PC compatible mouse was introduced in 1983. Apple introduced the Macintosh computer in 1984, which used a mouse and popularized the graphic-based user interface. Competitors followed suit and the design became the norm. By this time, there were already millions of personal computers in the United States, and the mouse was an important tool for navigating through the graphical interfaces of these computers.