nullComputers have revolutionized the way people live and work. Modern computers are very different from early computers that took up entire rooms. Personal computers are small enough to fit on a desk, yet they are capable of handling many of the same tasks as older computers. Computers are present in almost every aspect of life today. People interact with computers every day without even realizing it. Many small devices contain computers including cell phones, smart speakers, smart watches, and other electronic devices. Computers have transformed numerous aspects of daily life including communication, access to information, commerce, and leisure activities. The widespread adoption of computers and the Internet has dramatically changed many aspects of commerce and the economy. Business activities like advertising, marketing, banking, and shopping have been transformed. Computers and automation have also changed the nature of many jobs. While some jobs have been eliminated, many new jobs have also been created. Computers have impacted transportation by enabling advances in vehicle design and navigation systems. Computers are also crucial to the functioning of critical infrastructure like electrical grids, telecommunications networks, healthcare systems, and transportation systems. Computers have enabled major advances in science and engineering. Modern computers are vastly more powerful than early computers, enabling discoveries and technological advancements that would not have been possible otherwise. Computers have been instrumental to advances in medicine, transportation, architecture, and many other fields.