what is a mezzanine
Part of the Hardware glossary: Mezzanine is a term used to describe the stacking of computer component card s into a single card that then plugs into the computer bus or data path. The bus itself is sometimes referred to as a mezzanine bus.The term derives from the Italian word, mezzano, which means middle.art of the Hardware glossary: Mezzanine is a term used to describe the stacking of computer component card s into a single card that then plugs into the computer bus or data path. The bus itself is sometimes referred to as a mezzanine bus.