There has been a revolution in display technology over the last few years. Thanks to the development of touch screens, due in part to the mobile phone explosion, this type of technology can be found everywhere.

Touch screens have long been favoured in industrial applications because there is no need for separate input devices such as keyboard and mouse. Industrial touchscreen devices have long been favoured for their ease of use and ruggedness too.

LCD and digital signage is another revolution of the display and monitor sectors. These devices have come down in price dramatically and it is now just as inexpensive to use a digital signage or an LCD display than it is to have an old-fashioned 2D sign created and installed.

Keeping any digital signage or industrial display secure and protected is the only challenge, particularly if the LCD, plasma or digital signage is to be placed outside where it has to be protected from vandalism and theft or in an industrial area where elements such as dust, dirt and liquids need to be kept from saturating the device.

When needing an industrial display device such as an industrial LCD or industrial plasma, the key is to select a well designed LCD enclosure. Many manufacturers now produced packaged industrial LCD enclosures or industrial plasma enclosures, ideal for any industrial display applications or outdoor digital signage.

These industrial LCD enclosures can be manufactured and designed to cope with any environment, they can even be produced under European guidelines such as IP65 or IP54 (and the US NEMA equivalents).

Many consumers have enjoyed the great benefits of the DVD since this versatile disc was released in the market. Some may already be contented with it thinking that it’s the ultimate in data storage. They are not totally correct, though, because the DVD technology has continued to advance through the years.

The digital video disc or DVD for short has evolved into various formats and one of them is the dual layer DVD or DVD DL. Popularly known as the DVD9, this dual layer disc is called as such because it has a second layer within the disc itself. The first layer is semitransparent so that the laser can still pass through it to access the second layer. This is the reason why people watching their favorite movies in DVD may experience a few seconds of gap or pause. This is a normal occurrence and not a sign of damage or some kind of defect.

The DVD dual layer features two types of modes - the parallel track path (PTP) which is commonly used in DVD-ROM and the opposite track path (OTP) which is utilized in DVD-Video. Recordable discs can store a maximum of four hours of high quality video or 8.5 GB of data. This is for a one-sided disc with two recordable layers. A unique feature of this dual layer disc is that since it complies with the DVD9 specification, it can be played on any DVD player and computer DVD-ROM drives available in the market.

A DVD dual layer writeable disc carries the format DVD-R9, DVD+R DL and DVD-R DL. The single sided dual layered disc type or DVD-9 can store up to 7.95 computer GB or 8.5 GB while the dual layered double sides or DVD-18 has a storage capacity of 15.9 computer GB. Both the plus and minus sign formats are expected to be used for many long years to come. Additionally, drives that support the DVD+R DL also have the capability of recording single layer discs and faster CD-R/RW copying.

A single sided dual layered disc that is recordable is made up of a dummy polycarbonate platter base and a single recording layer. The double sided disc, on the other hand, has two dye recording layers. In the recording process, the drive initially uses the first recordable layer starting from the center going outwards. When it reaches the end, the drive then goes to the second layer to record starting from the outside rim going inwards.

The CD and DVD duplication industry can really make use of this dual layer DVD recording capability. A single sided disc alone can hold up to four hours of video and audio combined and with this reality, movie fans and businesses that need an effective marketing strategy can turn to the dual layer DVD with great confidence. Whether you’re copying just pure audio or pure video does not really matter because there’s always extra space available.

Finally, just think about these facts - a dual layer recordable DVD is capable of storing some 2,000 songs or 17,000 images in the JPEG format. Now who says this is not an amazing technology?

There are several uses for Web Cams. These small digital cameras can be used for viewing and chatting with family and friends via the Web. They are great for the work area, such as school or office, for video conferences. They may also be used for security purposes, viewing areas that need extra supervision.

There are two different types of Web Cams. The first is an external camera that is attached to your computer with an USB cord. The second, is a camera that is actually built into your computer. These cameras are usually located on the monitor of your laptop.

These cameras capture images in JEPG or MPEG format and the upload them to the web sever by File Transfer Protocol (FTP) or Hypertext Transfer Protocol (HTTP). You can control the image you want to send by using computer software that is compatible with the Web Cam. By adjusting the fps (frames per second) you can send a streaming video. Minimum fps for this is 15 but 30 fps is recommended for best quality.

Web Cams have been around for quite a few years. The first was used in 1991 at Cambridge University. It was pointed at a coffee pot in the Trojan room for viewing information. It was used for 10 years until it was finally turned off.

I’m sure when you purchase and use one of these Web Cams, you will find endless uses for it. Some of the manufactures you may want to look for are: Creative Technology Ltd, Encore Electronics, Ezonics, Labtec, Logitech, and Sony. These are just some of them, with the new technology we have today new ones are being designed everyday. Purchase yours and get connected with the visual message world.