“Time is gold” – a famous cliché, but says a lot about how time should not be wasted. Being at a certain place at the time you are expected to be there is a sign of good discipline. Alarm clocks truly help people to be on time with their day-to-day activities. They make a loud noise or a constant beep at a specific time set. One of their usual main purpose is to awaken people, usually in the mornings, so they could start their day early.

There are two basic types of alarm clocks. First is the mechanical type which typically has bell on top that rings to create noise. Second is the digital type which can make other noises – beep, music and other rhythms. With the influx of technology, they can even be installed in a computer, mobile phone and some are in a form of an iPod cradle or speaker. There are even multi-function alarm clocks that incorporated games and temperature readings.