UPS Power Supplies To Protect Your Computer by Alan LeStourgeon
Many people do not realize the absolute importance of purchasing a UPS power supply for their system. UPS stands for Uninterruptible Power Supply, but it is not uncommon to hear people refer to them as UPS power supplies, despite the redundancy. It can also be confusing to newcomers because... An uninterruptible power supply works by filtering the electrical power coming from electric company while storing a small amount in a battery. ... For a standalone desktop system with one printer, you'll want to buy a UPS that can give you at least ten minutes to shut down properly and save your...

Four Power System Problems Common in Colocation Facilities by Robert Deupree
The primary factor that determines uptime for servers in a colocation facility is power. Power outages will knock a network offline and even damage hardware such as motherboards, memory, and hard drives. Despite how intrinsic power is to keeping businesses connected to their networks, only 2% to... Every part of the power system – uninterruptible power supplies (UPS), transfer switches or circuit breakers, generators, and power distribution units (PDU) – should be redundant and running below capacity.

The PSU Factor: The Forgotten Component by Jason Busch
Lately, more focus on a performing computer system has been on one component which has been overlooked for several years: the Power Supply Unit. The PSU has been discussed to some extent in the past, however with new graphics cards, processors, and memory which require a much more stable power... What is potentially more revelating, is that many hard drive errors and operating system errors in the past could be attributed to a lack of a stable power supply and a lack of a more powerful power supply unit.

Lithium Solid Polymer Electrolyte Batteries by Dan Hagopian
If you have ever owned a PDA, iPod or any other small electrical device the battery power more often then not incorporated a technology called lithium polymer, a technology that is not only amazing but functional. This amazing technology is contained in the electrolyte solution that is the... In the battery cell the electrolyte solution is the conducting medium in which the flow of electric current between the electrodes takes place by the migrating electrons. ... A battery as we know it is a device that stores chemical energy and through an electrochemical/electromotive force converts the...

How to Install a Desktop Power Supply by Gary Hendricks
In this article we discuss how to install a desktop power supply. In learning how to install computer components, this is one of the easier tasks—yet also one of the most dangerous. The power supply delivers juice to your desktop, so follow the safety precautions below before you start. ... First, plug the cord back into the power supply and flip the power supply switch back on. ... Your power supply also has the ability to retain electric charges even after you’ve unplugged it. ... Check the connections between the power supply and the units it will be supplying power to.

Power and Your PC by Jason Kohrs
The power coming into a computer is the most critical component, and it may be one of the most overlooked. It is just taken for granted that it will always be there and working properly. A top of the line processor and ultra powerful video card do nothing if a system does not receive the ample,... In addition to checking out the total wattage of a power supply, looking for strong amperage ratings on the 3.3V, 5V, and 12V lines is also recommended, as power supplies with identical total power ratings may distribute the power to the various lines in different quantities.

How to Troubleshoot A Dead Computer by Robert Desacada
Is your Computer starting to act differently that sometimes it refuses to turn on? Or your Computer looks completely dead.? If you are experiencing this kind of Computer problems, all you need is just some troubleshooting techniques to try and free all your worries and headache. ... Once you know there is power, check to make sure the power cord is properly connected to the wall outlet and the computer power socket. ... The first thing you should do is check the power supply just to be sure that there is power available for your computer.

Data-Recovery: What You Need by Leon Chaddock
"Data-recovery is something we hope that we will never need. Whether you simply make the mistake of deleting important software or you lose it all in a computer crash, that valuable asset of information may seem like it is lost forever. But, if you have complete and quality data-recovery... A power surge, an electric storm or something else electrical happens and it’s all gone. ... The strange thing is, is that it takes only minutes to install and use and it virtually takes care of itself. ... Data-recovery is necessary for this to happen.

Harvesting Energy From Motion: New Fiber Technology Unlocks The Power Of Piezos by Patrick Gillam
Imagine a cell phone that recharges its battery as it rides on your hip. Or a wireless sensor that gets its electrical power from the motions the device is sensing. How about vibration damping technologies powered by the very movements they’re suppressing? ... Lighting The higher output power of Advanced Cerametrics piezoelectric fibers opens many opportunities to power electroluminescent lighting on bridge decks, signage and buoys, among other applications. ... Vibration damping Advanced Cerametrics PZT composites turn motion into power and power into motion.

What Is Random Access Memory by Park Oskar
RAM is considered volatile storage because as soon as the power supply is stopped, the contents of RAM are lost. Hence, the data in RAM stays as long as the computer is running. RAM is much faster to read from and write to, when compared to other storage devices like hard disk, CDROM, Floppy... It is an older type of SRAM, which works independently of the system clock, that is, asynchronous. ... DRAM is a volatile memory because it loses data when the power supply is stopped. ... DDR SDRAM consumes less power, hence is best suited for laptops.