The Gulf of Mexico is the largest among all the gulfs in the world.
A gulf is nothing but a large inlet from the ocean into the landmass, typically with a narrower opening than a bay.
The Gulf of Mexico is an ocean basin mostly surrounded by the North American continent. It is a unique, semi-enclosed sea located between the Yucatan and Florida peninsulas, at the southeast shores of the United States.
In computing, the expansion card or board or accessory card is a printed circuit board that can be inserted into an electrical connector or expansion slot, on a computer motherboard, to add functionality to a computer system via the expansion bus.