Open source tools is a phrase used to mean the tool -- that performs a very specific task, in which the source code is openly published for use and/or modification from its original design, free of charge.
Machine learning is an application of artificial intelligence (AI) that provides systems the ability to automatically learn and improve from experience without being explicitly programmed.
Artificial intelligence (AI) refers to the simulation of human intelligence in machines that are programmed to think like humans and mimic their actions. AI sometimes called machine intelligence
Hybrid cloud refers to a mixed computing, storage, and services environment made up of on-premises infrastructure, private cloud services, and a public cloud such as AWS, GCP, Azure, Oracle Cloud, Alibaba etc