First Oracle said it powered Zoom. Then AWS claimed it. Now Zoom says it uses co-located kit

Plus a bit of Azure, and it all costs so much it’s selling $1.5bn more shares
Videoconferencing darling Zoom has issued a prospectus it hopes will raise $1.5bn, and which also reveals that it may be less dependent on the cloud than its suppliers have trumpeted. The document also reveals that it’s struggling to buy the servers it needs and that free Zoom sessions have – surprise! – cost the company plenty while eroding margins.…