Distributed cloud is the application of cloud computing technologies to interconnect data and applications served from multiple geographic locations.
Distributed, in an information technology (IT) context, means that something is shared among multiple systems which may also be in different locations. Distributed cloud speeds communications for global services and enables more responsive communications for specific regions.
Cloud providers use the distributed model to enable lower latency and provide better performance for cloud services. Beyond the cloud provider context, two other examples of distributed cloud are public resource computing and the volunteer cloud.
Public resource computing is a cross between cloud computing and distributed computing that involves computers in geographically dispersed locations connected to collaborate on compute-intensive and/or computer-intensive tasks. Some examples of this are Folding@home, BOINC and SETI@home.