openpilot_comma/docs/concepts/glossary.md

# openpilot glossary

* **onroad**: openpilot's system state while ignition is on
* **offroad**: openpilot's system state while ignition is off
* **route**: a route is a recording of an onroad session
* **segment**: routes are split into one minute chunks called segments.
* **comma connect**: the web viewer for all your routes; check it out at [connect.comma.ai](https://connect.comma.ai).
* **panda**: this is the secondary processor on the device that implements the functional safety and directly talks to the car over CAN. See the [panda repo](https://github.com/commaai/panda).
* **comma 3X**: the latest hardware by comma.ai for running openpilot. more info at [comma.ai/shop](https://comma.ai/shop).