Fast food is a type of mass-produced food designed for commercial resale and with a strong priority placed on "speed of service" versus other relevant factors involved in culinary science. Fast food was originally created as a commercial strategy to accommodate the larger numbers of busy commuters, travelers and wage workers who often did not have the time to sit down at a public house or diner and wait for their meal. By making speed of service the priority, this ensured that customers with strictly limited time (a commuter stopping to procure dinnerto bring home to their family, for example, or an hourly laborer on a short lunch break) were not inconvenienced by waiting for their food to be cooked on-the-spot (as is expected from a traditional "sit down" restaurant). For those with no time to spare, fast food became a multibillion-dollar industry.
The fastest form of "fast food" consists of pre-cooked meals kept in readiness for a customer's arrival (Boston Market rotisserie chicken, Little Caesars pizza, etc.), with waiting time reduced to mere seconds. Other fast food outlets, primarily the hamburgeroutlets (McDonald's, Burger King, etc.) use mass-produced pre-prepared ingredients (bagged buns & condiments, frozen beef patties, prewashed/sliced vegetables, etc.) but take great pains to point out to the customer that the "meat and potatoes" (hamburgers and french fries) are always cooked fresh (or at least relatively recently) and assembled "to order" (like at a diner).
