Important: You must be first logged in to the account you want to explore.
Note: In the case of a family computer, people's history often ends up in other people's accounts, based on whose account was signed in at the time. To sign in click here.
In the above links, unless the user specifically disabled history, or manually cleared the history, these logs will contain all the usage history regardless of which device was used to access the content. As long as the account was logged in.
The proper way to monitor computer or device usage is with a monitoring program.