1 A group of off-the-shelf computers linked together to create a high-performance (e.g. over 10 teraflops) computing system.
2 Two or more parachutes linked to support single load.
3 Several bombs or other stores dropped as group.
4 Several stars or other pyrotechnic devices fired simultaneously from single container.
5 Several engines forming group controlled by single throttle.
6 Several rocket motors fired simultaneously to propel single vehicle.