In computing, a jumper is a pair of prongs used as electrical contact points installed within a computer motherboard or an adapter card. Jumpers are used to open, close, or bypass part of an electrical circuit, and are commonly employed as an alternative to a DIP switch. This blog will explain jumpers, their characteristics, and uses.


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Electrical resistors are a common electrical component that provide a circuit with electrical resistance. This may be in place to reduce current flow, divide voltages, adjust signal levels, terminate transmission lines, and cater to other operations. Resistors are basic components of electronic circuits, and they may be found in a multitude of electronic devices and networks. Varistors are a special type of resistor, allowing for varying resistance to serve as protective devices against excessive transient voltages. Varistors play important roles in a variety of applications to protect equipment and lines, and they have been prevalent in electronics since the early 1900’s. In this blog, we will provide a short overview on the functionality of varistors, as well as the applications that they benefit.


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Memory cards are a type of non-volatile data storage device that often utilize flash memory to store data. There are multiple types of memory cards, though one of the most common is the Secure Digital (SD) card. SD cards are designed for the use of storing data for portable devices, and their standards were set forth by the joint efforts of SanDisk, Panasonic, and Toshiba after their initial release in 1999. The standard that was established quickly was adopted by many other electronic manufacturers in the industry, and SD cards became commonplace for digital cameras, mobile phones, personal computers, and beyond.


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When using technology that relies on the use of radio frequencies, such as AM and FM radio, it is important that they are able to function without interruption or interference. Two major inhibitors of electronics using radio frequency are electromagnetic interference (EMI) and radio-frequency interference (RFI). These two types of disturbances are problematic as they can detract from the efficiency of a circuit, or even stop it altogether. These interferences are caused by many natural phenomena and man-made sources including cell networks, solar flares, ignition systems, and more. Because of EMIs and RFIs causing errors and loss of data, it is important to have a way of combating their effect on electronic devices.


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When buying RAM for the first time, whether to upgrade or build a new computer, choosing the right configuration can be a daunting task. There are a variety of terms for different performance specifications, and often the most expensive, top of the line models are well beyond what may be needed to improve your computer’s performance. RAM, or Random Access Memory, is hardware that holds the temporary data that your computer is using at a given moment, including programs and the OS. In this blog, we will discuss some of the basics of RAM, as well as how to choose the correct configuration for your system.


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With the ever evolving technology of computers, there are often debates on whether it is better to have a HDD or SSD for mass storage. For those unfamiliar with these devices, it may seem confusing of which one is more useful. While they have similar functions, the way that they store data is quite different. Comparing which one is the better choice also becomes difficult as it depends on the functionality desired. In this blog, we will give a short overview of the similarities and differences between these two drives.


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Resistors serve importance within electrical systems through the reduction of current flow, dividing voltages, and adjustment of signal levels to aid in electrical resistance. Carbon composition resistors are a type of fixed resistor that was developed in the early 20th century. They have become more outdated in more recent years, preceded by newer fixed resistors, though still have some important utilization in various applications. In this blog, we will provide an overview of what carbon composition resistors are, their advantages and disadvantages, as well as their modern applications.


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Resistors are an important component to help reduce current and restrict electrical current flow. Wire wound resistors, in particular, are important in applications where there are large amounts of power that need dissipation. They are one of the first types of resistors to be utilized, and their functions and structure have changed little over the years. Wire wound resistors have been superseded by other resistors, but their qualities and functionality in applications where other resistors fail make them still very reliable and widely used.


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In the modern era, most electronics are dependent on printed circuit boards, or PCBs, to contain the various electronic components that allow them to function. These components are held onto the board by solder flux that creates a bond between the pins of a component and their corresponding pads on the PCB, with the main purpose of the solder being to provide electrical connectivity. Soldering and desoldering is performed to install or remove components on a PCB.          


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MOSFET stands for metal-oxide semiconductor field effect transistor. What sets a MOSFET apart from its transistor counterpart, BJT (bipolar junction transistor), is that it is voltage controlled as opposed to current controlled. This makes a MOSFET more capable to handle high levels of voltage as opposed to a BJT.


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