Which of the following innovations was included in the Xerox Alto?

The Xerox Alto is well-known for introducing several groundbreaking innovations in computing. Among these innovations, laser printing played a significant role in its functionality. While the Alto itself was primarily a pioneering personal computer with a graphical user interface and was instrumental in developing desktop computing principles, it worked with systems that utilized laser printers, showcasing high-quality output that set a standard for future printing technologies.

Touchscreen interfaces and voice recognition were not primary features of the Alto. The concept of touchscreen displays emerged later, and voice recognition technology did not become prevalent in personal computing until well into the future. Therefore, highlighting the connection between the Xerox Alto and laser printing underscores the computer's status as a crucial piece of technology in the evolution of user interfaces and printing capabilities.