At first glance, it may appear that the PS4’s user interface shares little in common with the PlayStation 3. Little things stand out. You can temporarily suspend a game at any time by hitting the PlayStation button and, say, change your display or audio settings without quitting the game in question, The legacy of the Playstation 3’s operating system remains in the PS4’s often confusing hierarchy of menus, sub-menus and hidden options. For example, the console’s Notifications menu includes Notifications, Invitations, Game Alerts, Downloads and Uploads, all as distinct inboxes.