Okay kiddo, an alco boxcab is a special type of train engine that was made by the American Locomotive Company or ALCO for short. It was called a boxcab because it looked like a big box with two cabs on either end where the train driver and conductor would sit.
This train engine was different from other engines because instead of having the traditional steam engine, it had an electric engine powered by electricity from overhead wires or third rails. This allowed it to be much faster and more efficient than traditional steam engines.
The alco boxcab was also special because it was designed to be able to go around tight curves and tunnels in urban areas, which was important for transportation in cities. It was also used for freight transportation, meaning it was used to transport things like goods and materials from one place to another.
Overall, the alco boxcab was an important part of train transportation history and helped to move people and goods more efficiently and effectively.