what is the maximum number of usb devices that can be attached to a single usb controller
USB hub Most USB hubs use one or more integrated controllers (ICs), of which several designs are available from various manufacturers. Most support a four-port hub system, but hubs using 16-port hub controllers are also available in the industry.[citation needed] The USB bus allows seven cascading tiers of ports. The root hub is the first tier, and the last devices are on the seventh tier, which allows 5 tiers worth of hubs between them. The maximum number of user devices is reduced by the number of hubs. With 50 hubs attached, the maximum number is 127 âˆ’ 50 = 77.[6]
Canasta The classic game is for four players in two partnerships. Variations exist for two and three player games wherein each plays alone, and also for a six player game in two partnerships of three. If partners are chosen they must sit opposite each other. Canasta uses two complete decks of 52 playing cards (French Deck) plus the four Jokers. All the Jokers and twos are wild cards.