Technology refers broadly to how humans use tools and science to control their environment. More specifically, technology can be defined in several ways: 1) An artifact or hardware, which are items created to solve practical problems like tools, computers, and medicines. 2) A methodology or technique, which is the application of knowledge or science to create a procedure or practice such as painting techniques, using a microscope, or laser surgery. 3) A system of production, which is applying knowledge or science to a manufacturing process like an automobile assembly line. 4) A social-technical system, which is an interrelated group of people, artifacts, and devices that work together as a whole to meet a need