Technology also refers to our knowledge of using tools and machines to do tasks efficiently. Technology helps us control our environment. We use tools and systems to improve our work. Technology helps us to communicate, build better buildings, travel, and play! Imagine what life was like before computers and e-mail. Some technology is changing so quickly that we find our equipment out of date by the time we buy it. We are all part of the age of technology—the digital age.
Topic covered in this unit are:
Television and Radio