(2.5 hour time limit) Even though this distributed application has been proposed to harness the idle computational power of the vast network of

(2.5 hour time limit)

 Even though this distributed application has been proposed to harness the idle computational power of the vast network of distributed personal computers, the fear of being hacked has prevented its proliferation.

What is this software solution called that harnesses so much power from networked computers?

Explain four diverse problems this distributed application can solve.