In this lecture will show an introduction to OpenStack, starting with the basic concepts of Cloud, keywords, what Openstack project is, the use cases, history, the project overview, features, tools and roadmap. The following topics will be covered: * Introduction to Cloud Computing (Keyword such: Virtualization; Iaas, Paas, Saas; Public/Private/Hybrid/Community Cloud; Concepts: scalability, elasticity , provisioning, self-service, multi tenant, billing, etc) * What is OpenStack? * Who are using it? * History, Releases/Versions and Evolution * Architecture * Sub-projects (Keystone, Glance, Nova, Openstack Networking/Quantum/Neutron, Cinder, Swift, Horizon, Ceilometer, Heat, Oslo, Marconi, etc) * Tools * Next Releases * Who helps and distributions (RDO, StackOps, Devstack, Dell OpenStack, etc)