Cloud computing addresses the increasing demand of data storage and computing power, which allow users to avoid or minimize up-front IT infrastructure costs. It also provides companies with fast provisioning of computer system resources. This unit explores fundamental core services, security, and architectures in cloud computing and examines the concept of cloud computing and its enabling technologies (e.g. virtualisation, networking, web technology, etc.). It also analyses industry best practice in cloud adoption, cloud migration and cloud security. At the completion of this unit, students will acquire knowledge and skills in areas of virtualisation, cloud infrastructure, cloud service model, and core cloud services offered by Amazon Web Services (AWS).