In the context of wearable technology, which of the following tasks is/are accomplished by wearable devices? 1. Location identification of a person 2. Slee

1. A. 1 only
2. B. 2 and 3 only
3. C. 3 only
4. D. 1, 2 and 3

Answer: D

Explanation

Wearable technology is a category of electronic devices that can be worn as accessories, embedded in clothing, implanted in the user’s body, or even tattooed on the skin. The devices are hands-free gadgets with practical uses, powered by microprocessors and enhanced with the ability to send and receive data via the Internet. Location- and position-tracking sensors (i.e., GPS, altimeter, magnetometer, compasses, and accelerometers) are the most common type of sensors on wearable devices, such as activity trackers, smartwatches, and even medical wearables where they are used to check the physical activity and health of patients. Fitness trackers, also known as activity trackers, are typically worn on the wrist, chest, or ears, and are designed to monitor and track outdoor sport activities and measure fitness-related metrics, such as the speed and distance of running, exhalation, pulse rate, and sleeping habits. In more recent times, there has been a new surge in wearable technology worn on the ear, referred to as hearables. Hearing-Aids is a category of hearables involving use of a microphone, speaker and amplifier. This amplifies sounds to help people with hearing impairment hear. Example, Phonak Audeo V. Hence, all the options are correct.