The JIRA requirements can be found here, the Confluence requirements can be found here.
If you need the requirements for one of our other products, please have a look at https://confluence.atlassian.com/display/ALLDOC/Atlassian+Documentation
From here you should be able to find all information you need.
You must be a registered user to add a comment. If you've already registered, sign in. Otherwise, register and sign in.