The concept of houses has changed beyond recognition in the 21st century. Now, a house doesn't only consist of four walls and a roof; it has become a smart house, where different gadgets help residents of the house complete household jobs with ease. In 1923, a renowned Swiss architect named Le Corbusier described the house as a "machine for living in." With the passage of time in middle of 20th century, this thought turned into a reality. People were relieved of the drudgery of household jobs with the availability of electricity and gadgets to help. More and more people started...