Did you know there are tools already part of your computer’s operating system for keeping track of how much time your children play games and do other things online? Detailed instructions on how to find those free tools and use them for both the Windows 10 and the Macintosh operating system are part of a recent Personal Tech blog post in The New York Times. You can keep track of what games, apps, and websites your children visit and how much time they spend on each, and even check out what keywords they are searching for in your browser. You can also set limits on your children’s screen time.