Section outline

    • A cluster is a tightly coupled collection of servers, or nodes.
      They servers usually have the same hardware specifications and are connected together
      via a network to work as a single unit.
      Each node in the cluster has its own dedicated resources, such as memory, a processor,
      and a hard drive.
      A cluster can execute a task by splitting it into small pieces and distributing their
      execution onto different computers that belong to the cluster.