EMC (EMC) posted fourth-quarter earnings early Tuesday that topped analyst estimates, but shares were dragged down by guidance from VMware (VMW). EMC reported revenue of $6 billion, up 8% from the year-earlier quarter, and earnings of 54 cents a share minus items, up 10%. Both slightly edged the consensus estimates of analysts polled by Thomson Reuters. EMC also provided full-year estimates that were in line with consensus views. But the stock was