Algorithms and other machine-centric systems like AI mimic human decision making in their approach to data analysis.
Devices like smartphones and laptops are rich with sensors that capture the world around them.
Direct user input is the easiest data source to understand, but also probably the broadest in terms of form and content.
Device operating systems are the connection between user interfaces and sensors on the one hand, and applications and networks on the other.
Your transactions are your digital footprints. Were it not for the trusted relationships involved, modern commerce would simply cease to function.
If data is the fuel that makes the data economy run, applications are the machinery that converts data into something valuable.
Databases are everywhere. The data they contain spans everything from the human genome to trade manifests and the weather.
Networks hold a unique place in the digital ecosystem as one of the two physical platforms over which data travels (devices are the other).