Z-Wave is a wireless communication technology used in security systems and also business and home automation. Z-Wave technology minimizes power consumption, so it is suitable for battery-operated devices.Z-Wave technology minimizes power consumption, so it is suitable for battery-operated devices. Z-Wave is designed to provide reliable, low-latency transmission of small data packets at data rates up to 100kbit/s, unlike Wi-Fi and other IEEE 802.11-based wireless LAN systems that are designed primarily for high data rates. Z-Wave operates in the sub-gigahertz frequency range, around 900 MHz. This band competes with some cordless telephones and other consumer electronics devices, but avoids interference with Wi-Fi, Bluetooth and other systems that operate on the crowded 2.4 GHz band. Z-Wave is designed to be easily embedded in consumer electronics products, including battery operated devices such as remote controls, smoke alarms and security sensors. Z-Wave was developed by a Danish startup called Zen-Sys that was acquired by Sigma Designs in 2008.
The zettabyte is a multiple of the unit byte for digital information. The prefix zetta indicates multiplication by the seventh power of 1000 or 1021 in the International System of Units (SI).The prefix zetta indicates multiplication by the seventh power of 1000 or 1021 in the International System of Units (SI). Therefore one zettabyte is one sextillion (one long scale trilliard) bytes. The unit symbol is ZB.
ZigBee is an IEEE 802.15.4-based specification for a suite of high-level communication protocols used to create personal area networks with small, low-power digital radios.Small range wireless networking protocol that primarily operates on the 2.4 GHz frequency spectrum. ZigBee devices connect in a mesh topology, forwarding messages from controlling nodes to slaves, which repeat commands to other connected nodes. Due to its low power consumption and low data rate, ZigBee has been used in applications such as traffic management, wireless light switches, and industrial device monitoring.