System infrastructure refers to the collection of hardware, software, and services that are used to support and operate an organization’s computer systems and networks. It includes all of the components necessary to ensure that an organization’s computer systems are reliable, secure, and performant.
Some key components of system infrastructure include Servers, Storage system, Operating system, Virtualization software, Backup and recovery software, Network infrastructure, Cloud infrastructure

System infrastructure is critical to the success of any organization that relies on computer systems and networks. It helps to ensure that these systems are reliable, secure, and performant, and that they can be quickly recovered in the event of a disaster.