# data[].attributes.body
The electromagnetic spectrum is the full range of electromagnetic radiation, organized by frequency or wavelength.

# data[].attributes.body
We clasify from long to short wavelength, the EM spectrum includes radio waves, microwaves, infrared, visible light, ultraviolet, x-rays and gamma rays.

# data[].attributes.body
Wireless communication is one in which the communication is not linked by a physical propagation medium, but instead uses the modulation of electromagnetic waves through space.​

# data[].attributes.body
Wi-Fi is a system for sending data over computer networks that uses radio waves.

Devices to interconnect Wi-Fi elements:

1.Wi-Fi routers receive the signal from the line provided by the telephone cornpany and distribute it to the Wi-Fi receiver devices within their reach.

2.Wireless access points (WAP) act as remote transmitters: they are used in locations that the router's Wi-Fi signal cannot reach.

# data[].attributes.body
Bluetooth relies on short-range radio frequency, and any device that incorporates the technology can communicate as long as it is within the required distance.

# data[].attributes.body
Infrared technology uses a transmission technique based on the light waves that move within the infrared spectrum. Maximum distance: one metre.