The industrial Internet of Things (IIoT) has become an innovative technology that has brought many benefits to industries and organizations. This review presents a comprehensive analysis of IIoT’s applications, highlighting its ability to optimize industrial operations through advanced connectivity, real‐time data exchange, automation, and its importance in the context of Industry 4.0. Emphasizing the distinction between IIoT and traditional IoT, the paper explores how IIoT focuses on enhancing industrial ecosystems and integrating cyber‐physical systems (CPSs). This article explains how to establish a highly linked infrastructure to support cutting‐edge services and ensure greater flexibility and efficiency. It emphasizes the role of the CPS and industrial automation and control systems (IACSs) in realizing the potential of IIoT. Security concerns, an important part of IIoT, are addressed through conversations on protecting networked systems, assuring operational reliability, and emphasizing the need for strong security measures to prevent potential threats and vulnerabilities. Furthermore, critical technologies such as machine learning (ML), artificial intelligence (AI), and various communication protocols, including fifth generation (5G) and message queuing telemetry transport (MQTT), are investigated for their potential to improve system performance and decision‐making processes. In addition, the article also discusses the safety precautions and challenges of using IIoT. Finally, the article emphasizes the importance of addressing security issues in promoting the successful adoption of the IIoT and achieving its expected benefits. This study offers valuable resources for researchers, academics, and decision‐makers to implement IIoT in industrial environments.

We have evolved an effective interionic interaction potential to investigate the pressure-induced phase transitions from zinc blende (B3) to rock salt (B1) structure in II-VI [ZnSe] semiconductors. The elastic constants, including the long-range Coulomb and van der Waals (vdW) interactions and the short-range repulsive interaction of up to second-neighbor ions within the Hafemeister and Flygare approach, are deduced. Keeping in mind that both of the ions are polarisable, we employed the Slater-Kirkwood variational method to estimate the vdW coefficients. The estimated value of the phase transition pressure (P _t ) is higher than in the reported data, and the magnitude of the discontinuity in volume at the transition pressure is consistent with that data. The major volume discontinuity in the pressure-volume phase diagram identifies the structural phase transition from zinc blende to rock salt structure. The variation of second-order elastic constants with pressure resembles that observed in some binary semiconductors. It is inferred that the vdW interaction is effective in obtaining the thermodynamic parameters such as the Debye temperature, the Gruneisen parameter, the thermal expansion coefficient and the compressibility. However, the inconsistency between the thermodynamic parameters as obtained from present model calculations and their experimental values is attributed to the fact that we have derived our expressions by assuming the overlap repulsion to be significant only up to the nearest second-neighbor ions, as well as neglecting thermal effects. It is thus argued that full analysis of the many physical interactions that are essential to binary semiconductors will lead to a consistent explanation of the structural and elastic properties of II–VI semiconductors.