A device is a computer that can be used to access services. Desktop computers, tablets, smart speakers, and smart phones are all considered devices.
A referrer URL is information transmitted to a destination webpage by a web browser, typcally when you click a link to that page. The referrer URL contains the URL of the last webpage the browser visited.
Every device connected to the Internet is assigned a number known as an Internet Protocol (IP) address. The numbers are usually assigned in geographic blocks. An IP address can often be used to identify the location from which a device is connecting to the internet.
This is information that is recorded about users so that it no longer reflects or references an individually-identifiable user.
This is information that you provide which personaly identifies you, such as your name, email, address, or billing information or other data that can be reasonably linked to such information by Google.