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The smartphone market is critical for Sony as it makes its way back to profitability in 2013. Sony sees smartphone unit sales growing at 50% in the year ending March 31, 2013, compared to a decline in unit sales of video camcorders of 9%, decline in digital compact cameras of 29%, and decline of televisions of 31%. The Sony-Ericsson joint venture was a world apart from the current Sony Mobile business. Sony Mobile executive vice president, Kaz Tajima, expressed his frustration that Sony was missing opportunities when working at the joint venture. Decisions came slowly as they had to be approved at different levels. Sony Mobile moves quickly on all decisionmaking. Companywide technological capabilities are also quickly available in designing a new product. The Experia Z uses all of Sony's technological capabilities in design, cameras, television and other areas. It now appears that the joint venture was the worst thing that happened to Sony. Sony bought out Ericsson's stake in the venture in 2011. Sony starts with global smartphone market share of about 4.5% and has a lot of catching up to do....

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Amazon sales growth was 81% for AWS in the 2nd quarter 2015.

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The different strategies of Apple and Samsung in getting to the point where the two companies now dominate the smartphone market. Whereas Apple makes only one phone, its iPhone, Samsung's strategy is to have multiple phones in each price segment. It has five levels of Android based phones, with 2-3 models in each price segment. Samsung also benefits from doing its own maufacturing. When faced with a number of technologies Samsung's strategy is to bet on all of the technologies until one of them emerges as a winner, and then concentrate resources on that technology. It uses a similiar strategy for televisions. Apple by contrast places more emphasis on original design and profit margins over sales, gaining sales without eroding margins by being the first innovator in the market. It also has its own unique arrangement for manufacturing at lowcost with Foxconn in China that supports its high margins. Apple is secretive about its designs and promotes its brand heavily with its own retail stores. Apple also uses its innovative edge as leverage to steer profits away from carriers. Analyst estimates are that carriers such as AT&T and Verizon pay about $400 per iPhone to subsidize its cost because this is the only way to get customers into their retail stores. IDC estimates are that the smartphone market is $219 billon in 2012. Both companies are very close in volume- IDC estimates Apple shipped 93.2 million smartphones in 2011, compared to Samsung's 94 million units. Apple has market share of 23.5% in the fourth quarter 2012, up from 16% in 2010. Samsung has 22.8%, up from 9.4% in 2010. Apple and Samsung have together taken 91% of operating profits of all cellphone companies in the fourth quarter, an increase of 30% from 2011, according to Strategy Analytics....

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Sharp price reductions in cloud services of over 40% and upto 85% in 2014 are being offered by Amazon, Google and Microsoft. Amazon has $3 billion in sales in cloud services increasing by 85% in 2013 over the prior year, according to Bernstein Research. About 10% of corporate computing center services are handled by these companies. The sales in pay-as-you-go cloud computing services are estimated at $13.3 billion for 2014, an increase of 45% over 2013, according to Gartner Inc. A website with 50 million monthly page views costs about $1219 using a company's own servers, compared to $468 for Amazon EC2, $402 for Microsoft Azure (Linux), and $395 for Google Compute Engine, according to SADA Systems. Amazon also offers services for $390 with a 1 year contract for heavy usage.

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Cheng provides the basics of cloud computing and how best to use cloud services.