With the invention of mobile phones, alarms clocks are nearly extinct. Who wants a bulky tabletop alarm when you can use your mobile device to wake you up? Well, even tablets can make sure you get your coffee on time, and in the Samsung Galaxy Tab, there's the Android Alarm Clock application. Simply select APPLICATIONS < ALARM CLOCK and press the ADD ALARM icon in the top right. Press TIME to set the desire alarm time. Press RINGTONE to select the desire alarm sound.