Wireless

Updated: 04/02/2019 by Computer Hope

Alternatively referred to as cordless, wireless is the ability to operate a device without any wires that may cause constricted movement.

Cordless hardware

Cordless computer hardware devices such as a cordless mouse or cordless keyboard can use Bluetooth, Infrared, or RF. However, today most often use either Bluetooth or RF.

Note

Although cordless devices require no wires, they do require some device to broadcast a signal. For example, a Bluetooth mouse requires a USB Bluetooth transceiver to send and receive signals from the mouse. Also, all wireless hardware devices require batteries for power.

Wireless networks

Access point

Wireless networks, more commonly known as a Wi-Fi networks, utilize one of the IEEE 802.11 standards for wireless communication. Today, wireless routers that offer Wi-Fi have become common in most homes as a way for computers, smartphones, tablets, and other wireless devices to connect to the Internet.

Wireless broadband

Besides wireless networks in the home, there are other broadband wireless solutions, such as EVDO, Satellite, WiMAX. Users with smartphones can also use their smartphone as a wireless hotspot and connect to that hotspot with their computer.

Smartphones and cell phones

Apple iPhone

Today's smartphones and cell phones use many wireless technologies to communicate with the cell towers, Wi-Fi, and other devices. To make phone calls the phones use a spectrum of radio waves that allow wireless communication between the phone and the cell tower, which relays the signal to other towers or locations.

When communicating over the Internet and not using Wi-Fi, smartphones have many different technologies that can be used that include 2G, 3G, 4G, GPRS, GSM, and LTE.

Finally, when communicating with other devices (e.g., car, headset, or speakers) smartphones use Bluetooth.

Other examples of wireless devices

GPS

There are many wireless devices available today. To help prevent conflicts between wireless devices, each category of devices have a designated frequency area (spectrum).

  • AM / FM Radio
  • Baby monitors
  • Broadcast TV
  • Car key remote
  • CB Radio
  • Cordless phones
  • Garage door opener
  • GPS
  • Remote control car, airplanes, and other vehicles.
  • Radar for air traffic control.
  • Radar for weather
  • Radar Speed detector
  • RFID
  • Satellite TV
  • Security cameras
  • Standard time broadcast
  • Toll-road payment transponders.
  • Two-way radios
  • Walkie talkie
  • Wireless doorbells
  • Wireless fence
  • Wireless headphones, microphones, speakers, and other audio devices.
  • Wireless health monitors
  • Zigbee

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