All about Alarm Clocks

A device used to measure or indicate the time is a clock whereas alarm clock is

designed to alert someone at a specified time. The primary function of the alarm clock is to awaken people from sleep and probably that the reason it is also called a bedside alarm clock.  

Due to the advancement in technologies, numerous types of alarm clocks are available in the market nowadays. Apart from the sound, some alarm clocks also have light and vibration features. Some modern clocks have radio receivers that can be set to play at specified times, and they are called clock radios. Many people even use mobile phones for their reminders or waking up alarms.  

Well, coming back to alarm clocks, let us dig deeper into different types of clocks available as per their function, look and technological advancement.

1. Traditional analogue clock:

These traditional alarm clocks have two bells that work with the help of a mainspring. This mainspring provides power to gear so that hammer can move back and forth quickly between the two bells or between the interior sides of a single bell. Whereas in electronically operated bell electromagnetic circuit and armature are used to ring the bell and turn the circuit on and off repeatedly. These are cheap alarm clocks but works well.

2. Digital Alarm Clock:

With the development of electronics over the years, the use of digital alarm clocks has increased. The advantage of the digital clock over analogue is that it consumes less power. These are also easy to read as it displays the time digits using LEDs. Normal digital alarm clocks make a buzzing or beeping sound for reminders or waking up, whereas, novelty alarm clocks can speak, laugh, sing, or play sounds from nature.

3. Clock radio:

A clock integrated with an alarm clock as well as a radio receiver. The clock will turn on the radio as per the designated or set time. Radio clocks are placed on the bedside table. Also, for those who like to fall asleep listening to the radio, some clocks have a "sleep" timer, which turns the radio on for a set amount of time. This implies that the radio clocks work both ways - for making a person fall asleep as well as for awakening them.

4. Modern/ Advance technology Alarm Clocks

These alarm clocks with modern advanced technologies are our digital assistants such as Alexa, Cortana, Siri etc. These are intelligent personal assistants that can work or perform a task based on commands and questions. The capabilities of these virtual assistants are increasing rapidly. They can remind you about everything as per your schedule, they can also wake you up with your choice of music or chanting and can respond to you via synthesized voices as well.

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