# Two administrator applications · Worked example

- For a Windows PC and an ARM Mac, name the administrator you would open.
- Windows: Java or web
- ARM Mac: web
- Write down that the JRE list must be rechecked
- You did not install Java on the ARM Mac.

## Sources and go deeper

- [Technical requirements PDF](https://documentation-be.five9.com/bundle/five9-technical-requirements/raw/resource/enus/five9-technical-requirements.pdf). vendor. last checked 2026-10. Fetched for this lab in October 2026. Re-read before you buy hardware or open a firewall.
- confirm. The fetched PDF names JRE 8 updates 421, 451, and 461, and macOS 15 Sequoia, 26 Tahoe, and 27 Golden Gate. Those lines are time-specific. last checked 2026-10.