Computer “freezes” are caused when Windows cannot read or process the commands that you need it to. This problem is a common issue for many computers around the World, but is one which is actually very easy to fix if you know what’s causing the problem to start with. There are many different reasons why computers will freeze from time-to-time, but having fixed many computer freeze issues, there’s one issue which is continually the main reason behind computer’s freezing, and this is how to fix it…

The main reason why computers freeze is all down to a part of your PC called the “registry”. This is a central part of your computer which stores information and settings for your system, and is actually one of the most important parts of Windows. Not many people fully understand the registry, as its hidden from view most of the time. However, it’s where Windows stores all the settings and options that your computer & software need to run each day. All the settings on your PC such as your most recent files, your desktop wallpaper and even your screen resolution settings are all kept in the central registry database. However, the reason why this database causes your PC to freeze is because a lot of its settings have the tendency to become damaged and corrupted.

Unfortunately, the registry is continually becoming damaged and corrupted, leading your system to take longer to read the files it needs to run, slowing it down. However, if your computer cannot read the registry settings it needs, it will become highly unreliable and will end up either crashing or freezing. To fix this problem, and make your computer run as fast and reliably as possible again, its advisable to clean out all the corrupt settings from the registry database by using a registry cleaner. This is a type of software which scans through your PC and fixes any of the damaged registry settings that can cause your compute to freeze.

Although there are several different causes behind computer freezes, the most effective and reliable way to fix these issues is to use a ‘registry cleaner’ to fix any of the damaged settings inside the system. These tools are very popular with computer experts and beginners alike, mainly because of how effective they are at cleaning out the errors on your PC. If you get a good tool – that can fix the most registry errors – you can make your system run like new again.

source: http://ezinearticles.com/?Computer-Freezes—How-to-Stop-Your-Computer-Freezing-Randomly-and-Make-it-Run-Like-New-Again&id=4363887

What Is A Joule? Or a Watt, Volt, or an Amp?

Electronics and Electricity, uses a wide range of terms to represent different kinds of measurement units.  Many you have seen every day, and others from time to time in product specifications.  These are all part of the International System of Units.  Here is a short list of several common terms your will see in our products and their meanings:

JOULE: One joule (symbol: J) is defined as the amount of work done by electricity.  Technically it is the work required to continuously produce one watt of power for one second; or one watt second (W*s).   One kilowatt hour (a common electric company measure) equals 3,600,000 Joules (1W*s x 1,000 x 3600 seconds).

Ohm's Law Chart

Using This Chart You Can Easily Calculate
The Wattage, Current (Amps), Ohms, and Voltage For A Device!

WATT: In terms of mechanical energy, one watt (symbol: W or P) is a measure of energy used – this frequently results in heat, or as in the case of a light bulb, the heat creates a glow, thus more heat equals more light.  Technically a Watt is the rate at which work is done when an object is moved at a speed of one meter per second against a force of one newton.  By the definitions of electric potential (volt) and current (ampere), work is done at a rate of one watt when one ampere flows through a potential difference of one volt – or simply A*V=W

AMP (Ampere): In practical terms, the ampere (symbol: I) is the amount of electrical current passing through a conductor (a wire).  Technically it is a measure of the amount of electric charge passing a point per unit time. Around 6.242 × 1018 electrons passing a given point each second constitutes one ampere. You can figure out the Amps being use by dividing the Wattage by Voltage.  A 100W light, in a typical house (120V) uses 1.2A.

VOLT (Voltage): The volt (symbol: V) is the unit of electromotive force measurement, commonly called “voltage”.  Technically, the volt is defined as the value of the voltage across a conductor when a current of one ampere dissipates one watt of power in the conductor.  For example, if you know a TV uses 295 Watts and uses 2.45 Amps, you can calculate the voltage is 120 Volts.

OHM:  The ohm (symbol: Ω or R) is the unit of electrical impedance in AC, or, in the direct current case, electrical resistance.  It is the resistance of material to electrical current.  The higher the value, the higher the resistance, and the more voltage is required, and the more current used.  Most home speakers are low resistance, just 8 ohm.  Technically, the ohm is defined as the resistance between two points of a conductor when a constant of 1 volt is  applied, and produces in a current of 1 ampere.

DECIBEL:  The decibel (dB) is a logarithmic unit of measurement that expresses the magnitude of a physical quantity (usually power or intensity) relative to a specified or implied reference level.  The decibel is useful for a wide variety of measurements (particularly acoustics and electronics). It has a number of advantages, such as the ability to conveniently represent very large or small numbers, in a scaling that roughly corresponds to the human perception of sound and light.  It is frequently seen in Home Theater Receivers to represent amplification or volume.  Since it is based on a reference level, it is not easily used by the non-engineer, but simply as a specification value.