3. Dell Buys EMC Corporation
Back in 2015, Dell made headlines by spending a jaw-dropping $67 billion to buy EMC; then the biggest tech deal in history. The move transformed Dell from a fading PC giant into a giant of enterprise technology, with prized control of VMware in its pocket. But behind the glory was nearly $50 billion in debt, leaving many to wonder if Dell had just secured its future; or risked it all.