Help Desk vs. Service Desk explained
Help Desk is just help
Service Desk adds a lot more value to the organization by providing improved communication and help to drive resolution
Configuration Item = any component that needs to be managed in order to deliver an IT service.
Example: IT service, hardware, software, building, documentation
CI information is recorded in a configuration record
Configuration Records are stored in the configuration management system (CMS)
CI are maintained throughout their lifecycle by the process configuration management