Hardware Insights Forum

sends to us the uniform resource locators ("URLs") of websites visited by a user along with an anonymous client identifier, timestamp, ip address, port, http request method, server response code (http/s status code returned), user agent, mime type, and the browser language

Search results delivered in response to queries conducted through the browser address bar;
Search results delivered in response to queries conducted through the Internet Explorer search box;
Search results delivered from the browser’s search button;
Suggested links or search results when no server can be found in response to misspelled or incorrectly formatted address requests (i.e. DNS error search).

the Toolbar sends standard, limited information including your machine's IP address and one or more cookies . This data is retained in Google's server logs

When you type URLs or queries in the Toolbar search box, the letters you type are sent to Google