Introduction In a Linux operating system, every hardware device and most software components are represented as files in /dev directory. Three commonly used devices in /dev directory are devconsole, devtty, and devtty0. These devices are essential for debugging and troubleshooting purposes. However, they have different functionalities and can be confusing for beginners. In this article, we will explain difference between devconsole, devtty, and devtty0, their uses, and how to interact with them. What is Devconsole? Devconsole is a virtual device file that represents console, which is default terminal on a Linux system. It is also known as kernel console or ... Read More

Volt-Ampere and Watts are power measurement units. Volt-ampere is used to measure the total power that is being consumed by a device. Watts is used to power the device so it can perform its useful work. The product of voltage and current in an AC (alternating current) circuit is known as a unit of apparent power, or VA. It shows the overall power used by a device, which includes both the useful power used and the power lost as a result of inefficiencies like reactive power. The real power used by a gadget to carry out productive work is measured ... Read More

SMS and IM are messaging services that are used to communicate through mobile devices or computers. Short Message Service (SMS) is used to send small messages from one phone to another. IM messaging services are used to send messages from one computer to another computer through the internet. Read this article to find out more about SMS and IM and how they are different from each other. What is SMS? Short Message Service is a messaging service that is used to send and receive small messages from mobile devices. SMS is one of the popular methods of communication. SMS messages ... Read More

Single-action and double-action guns are the firing mechanisms of firearms. For each shot, the shooter of single-action weapons must manually cock the hammer. The trigger pull is light, and the amount of force needed to fire the gun is negligible when the hammer is cocked. Double-action guns are made to automatically cock the hammer as the shooter pulls the trigger. The majority of revolvers and some semi-automatic handguns have single-action mechanisms. Read this article to find out more about Single Action and Double Action Guns and how they are different from each other. What are Single‑Action Guns? Single-action weapons are ... Read More

Quartz watch movements are powered by a battery, while automated watch movements are powered by a complex system of gears, springs, and other mechanical components used to keep time. Read this article to find out more about Quartz and Automated Movement in Watches and how they are different from each other. What is Quartz Movement in Watches? Quartz-movement watches are powered by a battery-operated quartz crystal oscillator. It was first developed in 1960. Quartz watches are the most popular because of their accuracy and low cost. One of the main advantages of quartz-movement watches is their great accuracy. A ... Read More

mAh (milliampere-hours) refers to a battery's capacity, or the amount of energy it can store and deliver. NiMH (nickel-metal hydride) refers to the chemical composition of the battery. Read this article to find out more about NiMH and mAH batteries and how they are different from each other. What are NiMH Batteries? In NiMH batteries, hydrogen is used to store energy. Nickel Metal Hydride consists of a nickel hydroxide positive electrode plate, a hydrogen ion negative electrode plate, potassium hydroxide or another alkaline electrolyte, and a separator. NiMH batteries are commonly used in cell phones, digital cameras, pagers, electric toothbrushes, ... Read More

MRI and fMRI are used to produce images of the body using magnetic fields and radio waves. MRI creates structural images of the body. where fMRI creates functional images of the brain. The manner in which they are used is another difference. While fMRI is largely used for research, MRI is mostly used for diagnostic purposes. Read this article to find out more about MRI and fMRI and how they are different from each other. What is MRI? MRI uses MRS (Magnetic Resonance Spectroscopy) technology to measure the specific chemical biomarkers that are present inside your body. A sizing magnet, ... Read More

Meat thermometer and candy thermometer are types of kitchen thermometers, but they are designed for different purposes. The temperature of caramel, toffee, and fudge is determined using a candy thermometer. The temperature of meat that is cooked is determined using a meat thermometer. Read this article to find out more about Meat Thermometer and Candy Thermometer and how they are different from each other. What is a Meat Thermometer? A meat thermometer is a popular and essential kitchen tool that is used to measure the internal temperature of a meat. Meat thermometers should be cleaned properly after each use to ... Read More

An oven uses gas or electricity to heat the food. Induction cooktops, on the other hand, use magnetic energy to warm the cookware and the food that is inside. The primary distinction between the oven and induction cooktop is the process they use to heat the food. The induction cooktop is quicker and more energy efficient compared to other cooking techniques that are used to cook food. The oven is slower at cooking compared to an induction cooktop, but it allows different cooking methods such as roasting, baking, and broiling. Read this article to find out more about Induction Cooktop ... Read More

Chain drive and belt drive are the common methods for transmitting power between two spinning shafts in various mechanical systems. Both of these drives are commonly used in applications including autos, industrial machinery, and agricultural equipment to transfer power from one place to another. Belt drive uses pulleys and a flexible belt to transmit power, whereas chain drive uses a metal chain and sprockets to transmit power between two spinning shafts. Read this article to find out more about Chain Drive and Belt Drive and how they are different from each other. What is a Chain Drive? The chain ... Read More