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    • How to Record Audio from Speakers

      How to Record Audio from Speakers

      Sound information that passes through computer speakers can easily be something that one wishes to keep as a recorded piece to use for later. This is a great option to have when one wishes to be able to playback the sound on a different device such as a mobile phone or mp3 player. The simplest

    • Inventory Management Software

      Inventory Management Software

      In this fast-paced world of moving data and transferrable information, businesses must keep themselves in top performance in order to handle the ever-changing markets that they face. Inventory management software helps businesses do that by keeping track of inventory, stock, cashflow, and in some cases, income and expenses. Inventory management software comes in many different

    • How to Use Ping to Test a Network

      How to Use Ping to Test a Network

      The following steps elaborate on how to use the Ping utility to perform progressively more distant tests on network connectivity. Ping the Loopback Address – Type Ping 127.0.0.1 Successfully pinging the loopback address verifies that TCP/IP is both installed and configured correctly on the local client. If the loopback test fails, it means IP stack

    • Who Invented the Microphone?

      Who Invented the Microphone?

      A microphone is a device that converts acoustic power into electric power. Both the acoustic power and the electric power have similar wave characteristics that convert sound waves into electric voltages that eventually convert back into sound waves through speakers. Microphone were used with the first telephones, and then with radio transmitters soon after. Sir

    • Telephone Voltage

      Telephone Voltage

      Telephone voltage is actually related to the physical distance at which you can operate the telephone. If the voltage is high, it can signal to great distance. However, higher voltage carries certain risks. 48 V is a compromise between distance and safety. 50-52 V is used in central office common batteries, but designations and documents

    • Wireless Mesh Network

      Wireless Mesh Network

      A wireless mesh network relies on radio signals to allow several devices within a coverage area to communicate with each other. Wireless mesh networks are often used in conjunction with other networks in order to give users reliability and stability. This is because wireless mesh networks communicate with each other through any device within the

    • Magnetic Levitation

      Magnetic Levitation

      Magnets are mainly characterized for having poles: if you put together poles of the same charge they repel and if you put together charges of different pole, they attract. A body will be under Magnetic Levitation when it floats due to that special repelling quality of the magnets, i.e. when the force generated by the

    • What is a Variac?

      What is a Variac?

      Variac is the trademark name of a variable autotransformer. A variable autotransformer is a single-coil transformer in which two portions of the same coil are used as the primary and the secondary. Variable autotransformers are used for the same purposes as regular transformers, but handle lower voltages. They also differ from regular autotransformers in that

    • What is a Momentary Switch?

      What is a Momentary Switch?

      A common question asked by new student of electronics is what is a momentary switch? The short answer is that a momentary switch is a unit capable of turning any electronic device to either an on or off state when an end-user presses the switch. This type of switch can actually represent one of two

    • How to Convert JPG to Vector

      The problem with traditional 2D graphics image types such as JPG, GIF, and PNG is that image quality is lost when zooming inward on the picture. A vector image is created using equations that describe the respective image as objects. As a result, they scale more gracefully when enlarged. There are two methods to convert

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