Intel Corporation (NASDAQ:INTC) shares are trading lower after the company reported worse-than-expected first-quarter sales results and issued earnings guidance below estimates on Thursday. Here's a look at the details.  The Details: Intel reported quarterly earnings of 18 cents per share, which beat the analyst consensus estimate of 14 cents by 28.57%.  Quarterly sales came in at $12.72 billion, which missed the analyst consensus estimate of $12.78 billion by 0.44% and represents an 8.61% increase over sales of $11.71 billion from the same period last year. Revenue by segment in the ...