An electronic machine that makes daily life easier and faster. It is used in many fields like education, business, entertainment and engineering. In education, computers allow teachers to give interesting presentations and show educational videos and games to students. They also allow teachers and students to create and store documents, use the internet for learning, and give presentations. In business, computers are used for advertising, websites, financial systems, and presenting business projects. They are also used for creating movies and video games in entertainment, and designing models in engineering.