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# Harvester
The Harvester runs on the Fuchsia device, acquiring samples (units of
introspection data) that it sends to the host machine using the Transport
system. The Harvester does not store samples.
The Harvester relies on kernel APIs (to gather data) and a Transport layer (to
transmit data to the Dockyard).
## Samples
Various kinds of data are collected by the Harvester:
- [CPU samples](cpu_samples.md)
- [Memory samples](memory_samples.md)
- [Task samples](task_samples.md)
- [Component introspection](component_introspection.md)
## See also
- [Fuchsia DevTools](../README.md)