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Switches are one of the most basic electrical components and as such they are included in just about every electrical circuit in existence. Along with resistors, capacitors and inductors, switches are one of the fundamental building blocks in electronics. However, while toggle switches (like those in the familiar light switch) are one of the most often used switching devices, there is a slightly more exotic and very useful variety of switch called the reed switches.

The way that reed switches operate is somewhat different than those conventional switches that most toggle everyday. A reed switch is usually meant to open or close based indirectly on human interaction whereas a toggle switch interacts directly with the user of the device. For example, one area in which reed switches has seen prolific use is the cell phone industry. Nowadays, the trend is towards smartphones, but not long ago flip phones were the rage and still make up a large portion of that market. When a flip phone is closed the action will either close or open a reed switch which signals the processor to shut down the cell phone. In that case, the consumer is not actually toggling the switch directly, but rather one side of the phone case has a magnet which activates the reed switch upon open or close.

That is precisely how a reed switch mechanism operates. A “normally open” reed switch will be configured so that the contacts close when placed in the correct magnetic field. There are also “normally closed” varieties which break current flow when subjected to a magnetic field. The magnetic sensitivity of reed switches makes them especially useful as sensors in a wide range of applications as well as making them quite interesting to hobbyists in general. One such area is home burglar alarms. The window or door sensors traditionally would have reed switches incorporated into the schematic in order to tell if there was a break in the perimeter. Even old-school keyboards would have reed switches that were activated by the pressing of an individual key. A laptop may incorporate that type of switch to determine when to go to sleep or hibernate. However, with recent improvements in solid state device technology, the reed switch has been overtaken in many instances by newer hall effect sensors which can perform the same tasks as reed switches, but with a longer life expectancy and a greater reliability.

The Samsung Galaxy Note with its unconventional  5.3 inch screen seems to be pretty popular on the European and Asian markets. Within two months there are more than 1 million copies sold. The device sells very well in France, Germany and Taiwan according to Samsung. The device will be launched in the United States at the beginning of 2012.
The Galaxy Note should be the bridge between the smartphone and a tablet according to Samsung. With this device they try to tap a new market, where the user can use one unit for both purposes instead of two different devices. Samsung has announced to be satisfied with the sales numbers and expects another raise in sales during 2012. Partly because of the launch in the United States.

In certain reviews consumers saw the benefits of the lager 5.3 inch screen. Viewing e-mails and websites has never been that clear. The downside is the fact you have to compromise on mobility.

Home entertainment centers have long been the centerpiece of stylish homes worldwide. You can make any room in the house serve this purpose, however, the latest trend in technology is taking home entertainment centers to a different level. While you can opt for the traditional flat screen television with a surround sound speaker system, now you can turn the the home entertainment center into a full fledged cinematic experience rivaling the movie theater. A video projector is the heart of this type of entertainment center. A LCD projector is a small, compact choice if you are cramped for space while a digital light processing projector is known for producing super bright images. A CRT projector is said to produce the most life like picture to date, but is best used in a completely dark room. You can choose the place the projector almost anywhere you want, from the ceiling to the back wall and almost everywhere in between.

The screen on which the projector will cast images on is usually available in sizes anywhere from 80 inches to 120 inches. You can choose to have a screen that stays in place, or you can have a screen that rolls up when you are finished using it. If the home theater is not quite your style, you can choose a wall mounted flat screen television with an a/v cabinet just beneath it to store your things in. A Toronto based company called iFire has created a super thin 37″ flat screen television weighing in at only 2.2 pounds. The width of this module is only 2 centimeters thick and at prices starting at 300 dollars it’s one of the best deals on the market.

Any home entertainment center needs an awesome speaker system. You can choose free standing speakers if you want to adjust the position of speakers occasionally. If you want to go with top quality get the 7.1 surround sound system. This system decodes the video/audio systems’ signals into different channels of audio, delivering crisp, quality sound. This system comes with seven speakers and a sub woofer and is capable of totally inundating the room with sound. If you are the type of person who really likes to crank up the volume, a separate amplifier would be a good investment. In today’s world there are an innumerable amount of ways to variate and customize your home entertainment system, so choose something appropriate to needs.

These are just 10 of the latest gadgets. Some were on display at the IFA Technology Fair in Berlin. These companies are hopeful that these latest gadgets will be popular.

The first product is the new Samsung Galaxy 7.7 Tablet. It weighs just 12 ounces and is 7.89 millimeters thick. It promises to deliver brilliant colors and a crisp viewing experience with its “Super Amoled Plus” display technology. The battery lasts 10 hours. It will be available with 8 GB, 16GB, 32 GB, or 64 GB of memory.

The next gadget is the Samsung Galaxy Note with ‘S Pen’. It has the largest screen for a smart phone, 5.3 inches. The ‘S’ Pen lets the user draw and send handwritten images and notes via text message, email, and instant message.

LG has developed a Smartscan Mouse. This 2 in 1 device lets the user scan pages that are larger than most scanners.

Sony has released their Personal 3D Viewers. These are for fans of games and movies. They come with built-in surround-sound headphones.

Toshiba has developed a No-Glasses 3D TV. The TV creates the illision of depth without having to wear special glasses. This is done by putting lenses in front of the screen.

Sony has developed the thinnest camera ever made. It is called Cyber-shot TX55. It takes still pictures as well as full HD video. The camera has a back panel for showing photos and movie clips. It also has 3D picture taking capabilities.

LG has a new plasma TV with ‘PenTouch’ technology . It can be connected to a computer so information can be saved from the TV to files on the computer. Users can draw pictures on the TV screen and save them to the computer. The TV comes with a scratch resistant screen.

Toshiba has a new Ultrabook Portege 2380 super portable notebook. It weighs just 2.5 pounds. It is also less than 1/2 inch thick. It will be available November 2011. It is just one of several companies that have released new notebooks.

Samsung announced the release of the Samsung Nexus smart phone this month. It is first smart phone to run the Android 4.0 OS. It features a 4.65 inch super “Amoled” touchscreen, a 5 megapixel camera, up the 32GB of internal memory, a compass, accelerometer, compass, and it has a barometer. It will be available in November.

Last week Motororola unveiled the Droid Razr. It is the worlds thinnest smart phone. It is the first phone with splash guard that protects the inside and outside of the phone from water damage. The phone also has special battery technology that allows for 30 hours of use.

These are just a few of the latest cool toys.