Emerging Technologies you Should Know.
Optical Computing in IT
by Sangeetha Priya
Optical computing means performing computations, operations, storage and transmission of data using light instead of electricity. Instead of silicon chips optical computer uses organic polymers like phthalocyanine and polydiacetylene.Optical technology promises massive upgrades in the efficiency and speed of computers, as well as significant shrinkage in their size and cost. An optical desktop computer is capable of processing data up to 1,00,000 times faster than current models.
Advantages
- Optical computing are cheaper or more powerful than conventional computers. - Within one data path several data sets can be transmitted parallel at the same time using different wavelengths or polarizations. data paths are able to cross each other without interference. - The ...
HDMI - The Lifeline Of Hi-Definition Signal Transmission
by Sturat Mitchel
Hitachi, Panasonic, Sony, Toshiba, Philips, Thomson and Silicon Image came together to develop High Definition Multimedia Interface or HDMI. HDMI is a 19 pin compact plug and cable. It helps in connecting computers with other hi-definition audio-visual products.
The bandwidth available with HDMI is 5GBPS. 19 wires are wrapped inside one cable, which looks like an USB. Digital signals are transmitted through HDMI wires from digital audio/video sources like set top box, DVD players and satellite receivers, to a digital output device like a HDTV. The capacity of HDMI is barely extracted by a HDTV. It uses less than half the capacity of the HDMI. HDMI also carries 24- bit, 8 ...
What is Nanotechnology?
by Najib Altawell
The idea behind Nanotechnology is that by manipulating atoms and/or molecules to build materials and structures directly, as well as by exploiting the unique properties of matter at the nanoscale (0.1 nm to 100 nm) then we are at a distinctive level where the name of Nanotechnology has been put forward to describe this kind of human engineering activity.
Obviously, here we are dealing with what we call nanostructures - a nanometre is one thousand million times smaller than a metre, about 3 - 4 atoms in width. To give you an example how small this scale is, well just imagine we blew up an orange to the size of the ...
Technology, Change And Process Capabilities
by Geno Bulzomi
Vince Poscente in his book, The Age of Speed (2008), pointed out that "we actually can do more in a given time than we could even five years ago. Therefore, the expectations we face to produce faster are often valid." The idea presented here is revealing, yet at the same time so well understood by everyone. No one can argue the fact that we can do more, faster, because of technology. In many cases we buy the latest technological tools to increase productivity and increase profits. We buy the technology and then proudly sit back and wait for the benefits to materialize. Unfortunately, more often than not, production value remains ...
The HD DVD War Is Over - Blu-Ray Prevails
by David Cant
The high definition DVD war is over. The challenger has thrown in the towel and the victors arm is held aloft.
The announcement by Toshiba that its HD DVD format was to be abandoned has confirmed expectations that Sonys more expensive BLUE ray solution would prevail.
The two rival systems have been battling for two years now, initially racing neck and neck. The rot set in when Warner Brothers backed Blu-ray and said it would only issue films in that format in future.
One by one other content providers and retailers have added their vote for the Sony option.
The final nail in the HD DVD coffin appears to have been Wal-Marts decision to ...
Steganography and the Attacks
by Emmanuel Sodipo
Two aspects of attacks on steganography are detection and destruction of embedded message. Any object can be manipulated with the intent of destroying some hidden information whether an embedded message exist or not. [JOJ98].
Attacking steganographic algorithm is very similar to attacking cryptographic algorithms and similar techniques apply. If the original unmodified file used as a cover by the stegosystem is available to an attacker or investigator all he has to do is a bit-by-bit comparison with the suspect version in order to establish steganographic content. That is why publicly available files (sound files from CD or images from internet) should never be used as a cover. The strength of a ...
Thats Not an IPod in the Office Anymore - It is Now a Data Leakage Threat
by Dan Schutte
Cell phones, MP3 players, IPods, Instant Messaging, Hotmail accounts - all have come to be considered personal technologies. Each employee usually has at least one and many all. They also have found their way into the workplace as a right to use without administration, since it is their personal property. While you want to show tolerance for an individuals choices, be aware of the threats this choice can involve as well. Your entire data environment can become at risk. Read on to learn about End Point security and just how possible your data may be to leaving the building next to the top 40 song hits on an IPod.
Background
In the ...
Digital Signals Goodbye to Analog
by K Cantera
As this first decade of the 21st Century draws to a close, so also does the age of analog. When it comes to communications, analog has served humanity long and well, but the old technology is being phased out by governments and manufacturers alike, and within ten years, the old analog systems will likely be a technological footnote to history. Put simply, analog equipment cannot compete with the capacity of digital and, as a result of simple economics, it is destined to dwindle away. Of course, analog systems made sense when first created, for analog signals are able to duplicate virtually any natural phenomena, such as sound or light, which ...