IoT Definitions

This glossary explains the meaning of key words and phrases that information technology (IT) and business professionals use when discussing IoT and related software products. You can find additional definitions by visiting WhatIs.com or using the search box below.

  • M

    meet-in-the-middle attack

    Meet-in-the-middle is a type of attack that can exponentially reduce the number of brute force permutations required to decrypt text that has been encrypted by more than one key. Such an attack makes it much easier for an intruder to gain access to data.

  • Memory Spot

    Memory Spot is the trade name for a passive transponder under development by Hewlett-Packard that contains a chip capable of storing large data files such as digital photographs, databases or musical selections... (Continued)

  • MEMS (micro-electromechanical systems)

    A MEMS (micro-electromechanical system) is a miniature machine that has both mechanical and electronic components.

  • mesh network topology (mesh network)

    A mesh network is a network in which the devices -- or nodes -- are connected so that at least some, and sometimes all, have multiple paths to other nodes.

  • micro-location

    Micro-location is the process of pinpointing a person's placement to within a few inches or feet using various technologies.

  • microcomputer

    A microcomputer is a complete computer on a smaller scale and is generally a synonym for the more common term, personal computer or PC, a computer designed for an individual.

  • microcontroller

    A microcontroller is a compact integrated circuit designed to govern a specific operation in an embedded system.

  • microserver

    A microserver, also known as a server appliance, is a compact, less expensive, modular hardware platform designed to make installation and maintenance simpler than traditional enterprise-class rack servers.

  • mobile robot (mobile robotics)

    A mobile robot is a machine controlled by software that use sensors and other technology to identify its surroundings and move around its environment.

  • MQTT (MQ Telemetry Transport)

    MQTT (MQ Telemetry Transport) is a lightweight messaging protocol that provides resource-constrained network clients with a simple way to distribute telemetry information.

  • N

    Nest Labs

    Nest Labs was a home automation specialist company that produced programmable Wi-Fi-enabled products that can be remotely controlled through a Web service or an associated smart home app.

  • P

    passive sensor

    Passive sensor technologies gather target data through the detection of vibrations, light, radiation, heat or other phenomena occurring in the subject’s environment.  They contrast with active sensors, which include transmitters that send out a signal, a light wavelength or electrons to be bounced off the target, with data gathered by the sensor upon their reflection.

  • pervasive computing (ubiquitous computing)

    Pervasive computing, also called ubiquitous computing, is the growing trend of embedding computational capability (generally in the form of microprocessors) into everyday objects to make them effectively communicate and perform useful tasks in a way that minimizes the end user's need to interact with computers as computers.

  • R

    reference architecture

    A reference architecture is a document or set of documents to which a project manager or other interested party can refer to for best practices. By using a reference architecture, a project team can potentially save time and avoid mistakes by learning from past experiences.

  • remote sensing

    Remote sensing is the use of various technologies to make observations and measurements at a target that is usually at a distance or scale beyond those observable to the naked eye.

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