Topic Review
Z4 (Computer)
The Z4 was arguably the world's first commercial digital computer. It was designed, and manufactured by early computer scientist Konrad Zuse's company Zuse Apparatebau, for an order placed by Henschel & Son, in 1942; though only partially assembled in Berlin, then completed in Göttingen, and not delivered by the defeat of Nazi Germany, in 1945. The Z4 was Zuse's final target for the Z3 design. Like the earlier Z2, it comprised a combination of mechanical memory and electromechanical logic, so was not a true electronic computer.
  • 834
  • 08 Nov 2022
Topic Review
Wireless Technologies for Social Distancing in COVID-19 Pandemic
So-called “social distance” refers to measures that work to prevent disease spread through minimizing human physical contact frequency and intensity, including the closure of public spaces (e.g., schools and offices), avoiding large crowds, and maintaining a safe distance between individuals. Because it reduces the likelihood that an infected person would transmit the illness to a healthy individual, social distance reduces the disease’s progression and impact. During the early stages of a pandemic, social distancing techniques can play a crucial role in decreasing the infection rate and delaying the disease’s peak. Consequently, the load on healthcare systems is reduced, and death rates are reduced. The concept of social distancing may not be as easy as physical distancing, given the rising complexity of viruses and the fast expansion of social interaction and globalization. It encompasses numerous non-pharmaceutical activities or efforts designed to reduce the spread of infectious diseases, including monitoring, detection, and alerting people. Different technologies can assist in maintaining a safe distance (e.g., 1.5 m) between persons in the adopted scenarios. There are a number of wireless and similar technologies that can be used to monitor people and public locations in real-time.
  • 705
  • 25 Mar 2022
Topic Review
Wearable Travel Aids for Blind/Partially Sighted People
The ability to travel (independently) is very important for participation in education, work, leisure activities, and all other aspects of modern life. Blind and partially sighted people experience a number of barriers to travel, including inaccessible information and environments, and consequently require support from technology or other people to overcome them. 
  • 454
  • 11 Aug 2022
Topic Review
Wearable Technology in Sports
Wearable technology is increasingly vital for improving sports performance through real-time data analysis and tracking. Both professional and amateur athletes rely on wearable sensors to enhance training efficiency and competition outcomes.
  • 268
  • 20 Sep 2023
Topic Review
Volumetric Haptic Displays
Volumetric interfaces and displays have been an area of substantial focus in human–computer interaction (HCI), bringing about new ways to enhance interactivity, learning, and understanding as an extension to existing modalities. While much research in the area exists, current haptic display projects tend to be difficult to implement as part of existing visual display technologies. 
  • 77
  • 24 Nov 2023
Topic Review
Vision Systems for Fruit and Vegetable Classification
Citrus fruits are the second most important crop worldwide. One of the most important tasks is sorting, which involves manually separating the fruit based on its degree of maturity, and in many cases, involves a task carried out manually by human operators. A machine vision-based citrus sorting system can replace labor work for the inspection of fruit sorting.
  • 170
  • 21 Sep 2023
Topic Review
Vehicular Trust Management Systems and Blockchain Technology
The Internet of Vehicles (IoV) represents a novel generation of information and communication technology that seamlessly integrates the intra-vehicle network, inter-vehicle network, and in-vehicle mobile Internet, thus achieving a comprehensive level of connectivity and integration among vehicles, road infrastructure, individuals, and digital platforms.
  • 107
  • 11 Jan 2024
Topic Review
Unmanned Aerial Vehicle Computing Platforms
Unprecedented advances in Unmanned Aerial Vehicles (UAVs) or drones, their application has become widespread in public and industrial sectors. Now, drones are used in many areas such as the deployment of wireless networks, product shipping and delivery, precision agriculture, object detection and tracking, border surveillance and monitoring, remote sensing and environmental monitoring, traffic control, and earth mapping.
  • 1.2K
  • 31 Oct 2022
Topic Review
Understanding HII Framework and Related Technologies
The Unified Extensible Firmware Interface (UEFI) is currently the most popular industry standard, defining the software interface between an operating system and its underlying platform firmware. HII (Human Interface Infrastructure) is a part of the UEFI specification, which provides a standard framework for managing user interfaces based on UEFI systems. 
  • 206
  • 17 Nov 2023
Topic Review
Topology Designs for Data Centers
The adoption of simple network topologies allows for an easier way to forward packets. On the other hand, more complex topologies may achieve greater performance, although network maintenance may become harder. Hence, a balance between performance and simplicity is a convenient point when choosing a data center design. Therefore, some topology designs for data centers are going to be proposed; these are classified into tree-like and graph-like architectures. With respect to the former, a hierarchical switching layout interconnects all nodes, thus showing the form of an inverted tree within multiple roots, where nodes are the leaves of such a tree. Regarding the latter, nodes are directly interconnected to each other, hence no switch is involved in the design.
  • 235
  • 07 Jul 2023
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