A Brief Introduction To Bluetooth by Oliver Dvorak
Bluetooth was designed to allow low bandwidth wireless connections to become easy to use so even those who are new to wireless can use them. Version one.One of Bluetooth describes a low power, short range wireless networking technology that uses radio waves to send data at rates up to 720... Bluetooth also offers a robust link, which ensures that normal operating circumstances are not interrupted by interference from other signals that are operating in the same frequency band. ... The radio is power friendly and the software for Bluetooth is very configurable, limiting the power...

USB Hubs and Ports Explained by Nigel Stephens
The USB standard has become the universal means of connection peripheral devices and equipment to the computer. Computers have either two or four USB port connectors. Each of these can support a large number of connections but to be able to attach more than two or four devices requires a... Powered hubs have a mains power adaptor to provide additional power for devices. ... It is possible to run a number of different devices all from a single passive hub running of a USB port as long as they have low power requirements.

Tips for Getting the Most Life Out of Your Laptop Battery by Eve Larson
As more and more people are becoming part of the mobile workforce and using laptop or tablet PC’s battery life is often a primary concern. Today’s portable computers use lithium-ion batteries instead of older style nickel-cadmium power sources. In addition to being able to hold a greater charge,... Be sure to turn off any alarm or lower power warnings that are associated with your power settings. ... If you find that you are often using the computer with the battery at full charge while connected to the main power supply you may want to remove the battery.

Laptop CPU's-A General Guide by Darren Blythe
The central processing unit (CPU) is probably the most important chip in the computer. It contains the arithmetic and logic unit (ALU), so the computer can do calculations, and the control unit that controls the flow of data between the CPU and other components. ... There are two things that really matter with laptop processors: the balance struck between processor power and battery consumption, and the links to mobile technology that enable you to make the most of the laptop's portability. ... These use less power and run cooler (a definite plus in a laptop).

How You Can Find the Perfect iPod Speakers by Paula Korel
So, you have an iPod, but not the speakers. Well, you need to pick up a pair today. The speaker make sharing the music so much easier with your friends. Have that great song you want to have all you friends listen to, but it's a pain to pass it around with just the headphones? ... The plus points for iBoom iPod speakers are (1) low wattage consumption but could still produce decent sound, (2) portable and (3) charge an iPod when it is running on A/C power. ... Although portable iPod speakers offer sound better than most computer speaker, it can't compete with the home only or standalone...

Different Types of Computer Memory by Michael Russell
Computer memory refers to either of two types of computer storage. Volatile memory refers to RAM that needs to be constantly refreshed to be retained. Static memory is permanent storage that is retained even after the computer is turned off. RAM or Random Access Memory is volatile memory that is... The amount of RAM you need depends at least partly on the operating system( a program that directs all the basic functions of a computer such as accepting commands from a keyboard, displaying input on a monitor screen, and controlling disk drives and some other peripheral devices) you select as...

Testing Capacitor-How To Test A Capacitor When Breakdown Under Load by Jestine Yong
Have you ever come across power problem where once you switch on the power supply and the fuse blow? You have checked all the components in the power (primary) and secondary section and all the components seems to be ok! Where is the fault? A fuse blown are usually caused by a shorted bridge... Everytime when i switch on the power supply the fuse blow immediately (the fuse became dark color and this indicate that there is a major short circuit in the power supply). ... When i connect the faulty cap to the meter and press the go button-it showed a very low resistance and this is the proved...

Testing Transformer - 3 Proven And Simple Methods To Test Transformers by Jestine Yong
Testing transformer is very easy if you follow the procedure explained in this article. Generally there are two types of transformer in the market i.e. the linear type and the switch mode power transformer. In this article I’m only explain on how to test the linear transformer. ... 2) With power off, remove the transformer from the board and perform a resistance or continuity test on primary and secondary winding as shown on the picture of transformer below. ... I personally liked this method because you are testing the transformer under full operating voltage which is very accurate.

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.

Advantages and Disadvantages of Etching with Beam-Steered Laser by Rick Stevenson
This year, over one-third of all material processing lasers will be installed for product or package marking applications. Since their introduction in the early-1970's, laser markers have evolved as an effective tool for manufacturers who require a combination of speed, permanence, and image... The lower power CO2 marker does not provide the power to "engrave" substrates but, due to the comparative simplicity of design, can be purchased at a lower cost than the beam-steered Nd:YAG marker. ... Depth of penetration is less than the beam-steered CO2 marker since the laser output is spread...