Bluetooth is a widely adopted wireless standard designed to
replace cables for low-power data transmission over short
spaces. The standard was developed by Swedish technology and
telecommunications giant Ericsson in the early 1990s. Early
versions of Bluetooth were not widely adopted thanks to poor
cross-device implementation and security issues. Later upgrades
to the standard increased security and manufacturers more
closely adhered to design guidelines. Current applications for
the device-pairing technology include: wireless communication
between cellular phones and handsfree handsets (one of the
earliest and still most popular applications), wireless
communication between computers and peripherals (such as
keyboards, mice, and presentation pointers), and linking
smartphones and media players to car stereos. Many examples of
embedded Bluetooth systems surround users without the user ever
realizing they’re using Bluetooth. The controllers for the
Nintendo Wii and the Playstation 3, for example, are linked to