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Gadgets Articles
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What is a Botnet?
A botnet is a collection of internet-connected devices that have been infected with malware and are controlled remotely by cybercriminals. These compromised devices, called "bots" or "zombies, " operate without the knowledge of their owners and can be used to carry out various malicious activities. Botnets typically infect devices that have vulnerabilities such as outdated firewalls, unpatched operating systems, or insufficient antivirus protection. Once infected, these devices become part of a larger network that can be commanded to perform coordinated attacks. Botnet Architecture ...
Read MoreWhat are the differences between HDMI and VGA?
Let us explore the key differences between Video Graphics Array (VGA) and High Definition Multimedia Interface (HDMI), two important display connection standards used in computers and multimedia devices. Video Graphics Array (VGA) VGA stands for Video Graphics Array and was first developed by IBM in 1987. It remains widely used for connecting video cards, computer monitors, TVs, and laptops, particularly in older systems and budget applications. VGA uses analog video signals with five components (RGBHV): Red − Analog red color signal Green − Analog green color signal Blue − Analog blue color signal Horizontal sync ...
Read MoreWhat are the differences between thunderbolt 2 and thunderbolt 3?
Thunderbolt is a high-speed interface technology developed by Intel in collaboration with Apple that combines data, video, audio, and power delivery in a single connection. Understanding the differences between Thunderbolt 2 and Thunderbolt 3 is crucial for selecting the right connectivity solution for modern computing needs. Thunderbolt 2 Thunderbolt 2, released in 2013, uses a Mini DisplayPort (MDP) connector and delivers a maximum throughput of 20 Gbps. This represents a significant improvement over the original Thunderbolt's 10 Gbps and far exceeds USB 3.0's 5 Gbps speed. Thunderbolt 2 provides two bidirectional 10 Gbps channels and supports daisy-chaining up ...
Read MoreWhat are the differences between twisted pair cable, Optical fiber cable, and Coaxial cable?
Let us understand the concepts of twisted pair cable, optical fiber cable and coaxial cable before learning the differences between them. These three types of cables represent the most common transmission media used in modern networking and telecommunications systems. Twisted Pair Cable Twisted pair cable is made up of two insulated conductor wires twisted together. The twisting reduces electromagnetic interference from external sources and crosstalk between adjacent wire pairs. It comes in two main types: Unshielded Twisted Pair (UTP) and Shielded Twisted Pair (STP). Twisted Pair Cable Structure ...
Read MoreWhat is WIFI Protected Setup (WPS)?
Wi-Fi Protected Setup (WPS) is a network security standard designed to simplify the process of connecting devices to a secured wireless network. It allows users to add new devices to their Wi-Fi network without manually entering complex passwords or network settings. WPS was developed by the Wi-Fi Alliance in 2006 to address the complexity that non-technical users faced when setting up secure wireless connections. Instead of typing long WPA/WPA2 passwords, users can connect devices using a push button, PIN, or NFC method. How WPS Works WPS operates through several connection methods: Push Button Configuration (PBC) ...
Read MoreWhat do you mean by Internet of Things (IoT) Gateways?
Internet of Things (IoT) Gateways are critical infrastructure components that serve as intelligent intermediaries between IoT devices and cloud platforms. They enable seamless communication, data processing, and protocol translation in IoT ecosystems. An IoT gateway is a hardware device or software service that provides connectivity between IoT devices and the internet or cloud services. It acts as a bridge, collecting data from various sensors and devices, processing it locally, and forwarding it to appropriate destinations for further analysis and storage. IoT Gateway Architecture IoT Devices ...
Read MoreWhat are the Data Link Layer Communication Protocols in IoT?
IoT communication protocols are standardized rules that ensure secure and reliable data exchange between connected IoT devices. The Data Link Layer protocols specifically handle how data is transmitted over physical network links between adjacent network nodes. IoT devices can connect through IP networks or non-IP networks. IP-based connections offer wider range but consume more memory and power. Non-IP networks like Bluetooth require less resources but have limited range coverage. IoT Data Link Layer Protocol Stack Application Layer (MQTT, CoAP, HTTP) ...
Read MoreWhat are the differences between IIOT and IOT?
Let us understand the concepts of Internet of Things (IOT) and Industrial Internet of Things (IIOT) before learning the differences between them. Internet of Things (IOT) It is described as the physical devices like mobiles, PCs, home appliances and many more electronic devices that are embedded with sensors, software and other technologies to transmit data and communicate among devices through the Internet. Examples: Air conditioners, sensors, smart watches, mobile phones, smart home systems, fitness trackers. Industrial Internet of Things (IIOT) It is described as using the internet of things in industrial applications and sectors. The ...
Read MoreWhat are the differences between WiFi Extender and WiFi Booster?
Let us understand the concepts of WiFi extender and WiFi booster before learning the differences between them. WiFi Extender A WiFi extender, also called a wireless network extender or range extender, is a device that amplifies and rebroadcasts your existing WiFi signal to extend coverage to areas with weak or no signal. It works by receiving the original WiFi signal from your router, amplifying it, and then transmitting the boosted signal to cover dead zones in your home or office. The device uses both wired and wireless technologies to bring wireless connectivity to areas where network coverage ...
Read MoreDifference between Air Conditioner and Refrigerator
Refrigerator and Air Conditioner (AC) are both electrical appliances that are used to reduce the temperature of a closed space by transferring the heat of the closed space to another place. Both AC and refrigerator work on the principle of heat-sinks, i.e., these devices transfer the heat from a source (or closed space) to another place called sink. Read through this article to find out how Air Conditioners are different from Refrigerators. What is an Air Conditioner? An Air Conditioner is an electrically operated cooling device which is generally used to cool a large closed space such as a ...
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