A container ship, also known as a "container vessel," is a type of ship specifically designed for the transportation of international standard containers.

These containers, which are typically 20 feet in length, can be loaded and unloaded with great efficiency, significantly reducing the time spent in port and minimizing damage to the cargo during handling.

The first container ship was converted from a traditional cargo ship in the United States in 1957. Due to its improved efficiency and reduced damage to cargo, the container ship quickly gained popularity and by the 1970s had become a common sight in ports around the world.

Container ships are easily distinguishable from traditional cargo ships due to their unique design. They have a long and narrow shape, a single deck, a flat upper deck, and large cargo hatches that can take up as much as 70-80% of the ship's width.

The deck and cargo hatches are equipped with tie-down equipment to secure the containers during transport, and the interior of the cargo hold is fitted with a fixed grill guide frame to help with loading and unloading and prevent the containers from moving during rough seas.

Ports, which are located along coastlines, rivers, lakes, and reservoirs, are essential for the safe entry and exit of ships and serve as transportation hubs for the movement of goods and people.

They are distribution centers for industrial and agricultural products and foreign trade imports and exports and are also places where ships can berth, load, and unload cargo, take on and disembark passengers, and replenish supplies.

The development and operation of ports require certain natural conditions such as a superior geographic location, extensive land and water areas, and a necessary depth of water for berthing.

They also require a smooth and efficient collection and distribution system to function as an important transportation hub in the larger transportation network.

Port development also requires large capital investments and a long construction cycle, and the industry is characterized by a high degree of operational specialization and strict government control.

Some of the world's most famous ports include the Port of Singapore, located on the southern coast of Singapore and known as one of the world's larger container ports.

The Shanghai Port in China is located at the intersection of the Yangtze River and the coast and serves as a hub for transportation throughout the country.

And the Dubai Port in the United Arab Emirates, which is the largest port in the UAE and one of the major container ports in the world, is known for its free trade and re-export trade.