OS X Mavericks will now display app notifications on your lock screen by default. For added privacy, you might want to disable them. Jason Cipriani Contributing Writer, ZDNet Jason Cipriani is based ...

The sound you choose to notify you when you get a text, call, or social media update is important since it's what you'll primarily need to listen for to know when someone is trying to contact you.

Push notifications are alerts that users can subscribe to when they visit a website. Typically, a pop-up menu will appear asking if the person wants to sign up for notifications. The user then has to ...