Radio-frequency identification or RFID pertains to a technology where a reader captures digital data encoded in smart labels or RFID tags through radio waves. How does RFID work? RFID uses radio [...]

Near Field Communication or NFC allows short-range communication between devices. Different devices that use the NFC standard will be considered active or passive. Active devices can send and receive information as [...]

A cryptocurrency is a virtual currency that can be used to exchange services and goods through electronic transactions without the presence of an intermediary. It is a decentralized form of currency, [...]

Millions of people now trust a small, fabric-covered cylinder to lock their front doors and set their morning alarms using nothing but a voice command. This transition from physical switches to [...]

Bluetooth connects portable equipment such as mobile phones. Low-cost transceivers are embedded in the devices. Up to 8 devices can be connected at the same time, and each device provides a [...]

GPS or Global Positioning System consists of approximately 30 satellites orbiting our planet at an elevation of 20,000 kilometers. The network of satellites was initially developed for military use, but anyone [...]