Logical machines (also called computers or computers) are machines that use instructions from a program (a set of instructions) to make choices, solve problems, and do calculations. They take information from you, either manually or through data, and use that information to help with tasks. For example, a computer might look at a list of numbers and be able to tell which number is the highest or lowest. It can also perform more complex tasks like creating a colorful picture or playing a digital game.