(Reuters) Big job cuts at Microsoft. The world’s largest software company is cutting up to 7,800 positions – most of them in its phone business. This move comes just one year after it launched one of the largest layoffs in tech history – some 18,000 jobs – as it tried to focus on cloud computing and mobile software services. Microsoft will write off $7.6 billion associated with Nokia’s handset unit it bought last year. It’s […]