There are a number of frameworks IT works within. For example, Microsoft IIS vs Apache with a little TomCat tossed in for good measure. I’ve gathered some of the ones I have deployed, configured, and/or developed for.
Software Environments
Amazon AWS
Citrix
Linux on-premises LAMP stack (Linux,Apache, MYSQL or MariaDB, PHP )
Microsoft on-premises platforms – IIS, SQL Server, along with Active Directory)
Microsoft Azure
Microsoft RDS
Sharepoint – I guess this qualifies since you deploy applications on it