The most important application of diazo coupling reactions is electrophilic aromatic substitution of activated benzene derivatives by diazonium electrophiles. The products of such reactions are highly colored aromatic azo compounds that find use as synthetic dyestuffs, commonly referred to as azo dyes.
The biggest IT vendors in the world by revenue. Research and advisory company, Gartner, has published the top global 100 vendors in IT in 2016 based on their revenue across IT and component market segments. Apple is listed as the largest vendor with more than $218 billion in IT revenue â approximately $79 billion larger than second placed Samsung Vendor Group, while Google is third.
With a market share of 15.9%, Dell was the third largest PC vendor in the world in the first quarter of 2017, after Lenovo and HP Inc. (formerly The Hewlett-Packard Company). In the first quarter of 2016, Dell was the largest manufacturer of computer monitors in the world, with a market share of 16.8%.