Other software updates to know about
Other non-Apple applications have their own updating procedures. You should be aware of these so that you know when these applications require an update.
Microsoft Office can be set to automatically update by clicking the "Help" menu in the menu bar at the top of the screen and selecting "Check for Updates."
Firefox (web browser application) will automatically alert you when updates are ready for installation. For more information, visit https://support.mozilla.org/en-US/kb/Updating%20Firefox#Manually_check_for_updates.
Java will automatically update through Software Update.
Adobe Reader and Adobe Flash will periodically check for updates through Adobe Updater, which has a Dock icon that looks like this.