Python All-in-One For Dummies, 3rd Edition

Chapter 1

Introducing Robotics

IN THIS CHAPTER

Understanding what a robot is

Recognizing the different types of robots

Knowing the parts of a robot

Robots. That name has been bandied about for a hundred years. It comes from a Czech word, robota, which means “involuntary labor.” It was first used in the 1920 play “R.U.R. – Rossum’s Universal Robots” by Karel Capek, but it was really Capek’s brother Josef who coined the word. Did you know there was a robot in Frank Baum’s land of Oz in 1907? Baum didn’t call it a robot, but it’s definitely a robot.

Robots are everywhere in today’s modern world. Your house is filled with them. How is that possible? To understand what we are talking about, you need to understand the definition of robot more in computer-science terms than in Hollywood’s.

A Robot Is Not Always Like a Human

Two things to know about robots:

• Robots, at a minimum, have only two features: a computer and an actuator.
• Robots are dumb. We call this rule #1. Robots are not people.

Robots have a computer of some kind; think of it as the machine’s brain. These brains can vary from IBM’s Watson to a small 8-bit processor with a few thousand bytes of RAM. (You will see this ...