What is Hybrid Cloud Computing?

Hybrid computing is hmm having software like BOINC that will make calculation using your CPU and then upload them to the cloud, and it's like big pool of guys doing CPU calculation for bigger projects.

So the answer will be : Hybrid cloud computing, is a method using specialized software to group CPU power from many machines, instead of relying on expensive supercomputer hardware to perform many intensive calculation usually in joined project.

An example for that is Folding @ home : http://folding.stanford.edu/

Where you install a software that will perform calculation to help scientist further understand protein folding, and your results will get uploaded to the cloud, the software takes the role of organizing tasks and scheduling them.

Hybrid cloud is a cloud computing environment which uses a mix of on-premises, private cloud and public cloud services with orchestration between the two platforms. By allowing workloads to move between private and public clouds as computing needs and costs change, hybrid cloud gives businesses greater flexibility and more data deployment options.