All-in-one line to also add a quad-core processorApple on Tuesday announced a major update to its iMac line of desktop computers, replacing the old 20- and 24-inch models with new 21.5-inch and 27-inch models featuring a true widescreen 16x9 aspect ratio and impressive high-end features previously found only in the Mac Pro line, including the first quad-core processor ever in an iMac.
