Apple updates iMac line with new processors

Apple Inc. on Tuesday released an upgraded line of iMac desktop computers with faster processors, higher-resolution cameras and a new type of data port.The new iMacs all have Intel quad-core processors, which had been available as an upgrade to the standard dual-core processors of the previous generation. Apple said the new models are up to 70 percent faster.The new 21.5-inch screen iMac has a single Thunderbolt port, which can carry data at speeds 20 times faster than most current USB ports whereas the 27-inch iMac has two Thunderbolt ports.Apple introduced Thunderbolt on MacBook Pro laptops in February. The port was developed by Intel Corp. Both the versions can also be connected to additional monitors.The 21-inch iMac starts at $1,199 and the larger 27-inch model starts at $1,699.Apple last revamped its iMacs in October 2009.