Context: Two major hardware revisions of the Xbox 360 have succeeded the original models; the Xbox 360 S (also referred to as the "Slim") replaced the original "Elite" and "Arcade" models in 2010. The S model carries a smaller, streamlined appearance with an angular case, and utilizes a redesigned motherboard designed to alleviate the hardware and overheating issues experienced by prior models. It also includes a proprietary port for use with the Kinect sensor. The Xbox 360 E, a further streamlined variation of the 360 S with a two-tone rectangular case inspired by Xbox One, was released in 2013. In addition to its revised aesthetics, Xbox 360 E also has one fewer USB port and no longer supports S/PDIF.

Question: How many major hardware revisions has the 360 had?
Answer: Two

Question: By what other name is the 360 S model known?
Answer: "Slim"

Question: Which SKUs did the 360 S replace?
Answer: the original "Elite" and "Arcade" models

Question: What component of the 360 S prevents overheating issues prevalent in prior versions?
Answer: a redesigned motherboard

Question: What video input format is not supported by the 360 E?
Answer: S/PDIF

Question: What was the appearance of the Arcade model?
Answer: Unanswerable

Question: What kind of case did the Elite have?
Answer: Unanswerable

Question: How many USB ports did the S model have?
Answer: Unanswerable

Question: Which video format does S not support?
Answer: Unanswerable

Question: What was the color of the S model case?
Answer: Unanswerable