A production line is a manufacturing process where products are assembled in a sequential manner. Each worker or machine performs a specific task, contributing to the overall production of the item. This method increases efficiency and reduces the time needed to produce goods, making it a popular choice in industries like automotive and electronics. In a typical production line, raw materials enter at one end and move through various stages until they become finished products. This system allows for mass production, which can lower costs and meet high demand. Examples of items produced on a production line include cars, smartphones, and furniture.