Context: In recent years, Apple has seen a significant boost in sales of Macs. This has been attributed, in part, to the success of the iPod and the iPhone, a halo effect whereby satisfied iPod or iPhone owners purchase more Apple products, and Apple has since capitalized on that with the iCloud cloud service that allows users to seamlessly sync data between these devices and Macs. Nonetheless, like other personal computer manufacturers, the Macintosh lines have been hurt by consumer trend towards smartphones and tablet computers (particularly Apple's own iPhone and iPad, respectively) as the computing devices of choice among consumers.

Question: What is partially credited for the significant boost in sales of Macs in recent years?
Answer: the success of the iPod and the iPhone

Question: What allows users to easily sync data between an iPhone and a Mac?
Answer: iCloud cloud service

Question: What consumer trend has hurt many personal computer manufacturers?
Answer: smartphones and tablet computers

Question: Which smartphone has hurt personal computer manufacterers the most?
Answer: Apple's own iPhone

Question: What are the top two computing devices consumers are choosing?
Answer: iPhone and iPad

Question: What is partially credited for the insignificant boost in sales of Macs in recent years?
Answer: Unanswerable

Question: What allows users to easily sync data between an iPhone and a PC?
Answer: Unanswerable

Question: What consumer trend has hurt many business computer manufacturers?
Answer: Unanswerable

Question: Which smartphone has hurt personal computer manufacterers the least?
Answer: Unanswerable

Question: What are the top three computing devices consumers are choosing?
Answer: Unanswerable