Optical Computing in ITby Sangeetha Priya 10/5/2008 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 Transmissionby Sturat Mitchel 10/5/2008 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 3/12/2008 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 Capabilitiesby Geno Bulzomi 3/12/2008 |
The HD DVD War Is Over - Blu-Ray Prevailsby David Cant 3/12/2008 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 Sony’s 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 Attacksby Emmanuel Sodipo 3/12/2008 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 ... |
That’s Not an IPod in the Office Anymore - It is Now a Data Leakage Threatby Dan Schutte 3/12/2008 Background In the ... |
Digital Signals Goodbye to Analogby K Cantera 3/9/2008 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 ... |
Wireless Routers Buying Guideby Ryan Hodgson 3/9/2008 Router Functionalities Firewall Firewalls are ideal for home networks. They help in protecting home use computers by stalling the destructive efforts of other official websites and potential hackers. This software or hardware device filters the information coming through the internet connection, flagging the information that is not to be allowed through. You can find some such models at: VPN Pass through VPN pass through feature of routers allows traffic between the endpoints and does not support one of the endpoints. This feature is ideal for routers of home use or small office setups; they are less expensive than a router with full VPN that supports the endpoints. DHCP server Dynamic Host Configuration Protocol (DHCP) servers can ... |
High Def DVD Technology Faces External Threatsby Emily Sanderson 3/9/2008 A lot of attention is paid to the fevered competition between Sony’s Blu-ray and Toshiba’s HD-DVD High Definition DVD formats, but many analysts and the general public ignore the threats that high def DVD technology in general face from other technologies. Unlike the original DVD format that was introduced almost a decade ago and the video cassette technology that came before it, high def DVD’s in general face competition from a number of other technologies that are threatening to make them obsolete before they even get a foothold in the market. The most obvious source of competition comes in the form of all of the services that are offering movies in ... |
Running A Reverse Phone Lookupby Pauline Stradlen 3/9/2008 Now imagine this- you have just had someone call you on the phone, and you need to find out the owner of the number ( this could be for several reasons I won’t go into now). What do you do? How do you go about finding the information on the person who owns that number? I know you’re going to say what about caller ID - well if it was that easy then your problem would be solved already. The best way to do this is to use a reverse phone lookup service. There are a lot of these available on the net, many claiming to be free. However, be ... |
Do You Need To Do A Reverse Telephone Lookup?by Marie Reynolds 3/9/2008 The internet has become a great tool for anyone who is searching for specific information - and anyone needing to do a reverse telephone lookup can easily do a search on their own. There are some very good resources available online to find out who a phone number belongs to. Have you recently noticed unusual phone numbers on your home phone, or your partner’s cell phone that you can’t explain? Unfortunately, this is very common and can indicate a possible infidelity by one of the people in the relationship. However, there are sometimes very good reasons for the phone numbers, but once the thought is there, it is difficult to see ... |
Saving Money And Maximizing Use On Prepaid Phone Cardsby Vanessa A. Doctor 3/9/2008 A lot of individuals today make frequent calls to business associates, co-workers, family and friends. In doing so, they turn to the affordable and trusted means of communication- prepaid phone cards. Prepaid phone cards are popular choices because these are convenient devices, it can be used anywhere and, and because you pay in advance, you will not be paying for any monthly bills. These devices are very popular among immigrants, expatriates, travelers, students, and those who frequently call overseas, or those who haven’t chosen a preferred long-distance service. No Monthly Bills And Other Contracts To Sign Choosing a specific call card is like p[laying Russian roulette, and the right card can make all ... |
Do You Know What Satellite Radio Is And How It Works?by Gregg Hall 1/15/2008 Satellite radio probably the best thing that’s happened since the invention of TV. Satellite radio often called paid radio because you cannot get it through the regular stations that you pick up in a normal car radio. Therefore when you pay for these certain stations, you will get so much music that you will just not even know what to do with yourself. This uses satellites give the subscriber their music and stations. The signal is from earth but then is sent to the satellites to get a received signal and start playing music. The signal is then broadcasted over an area so that the people with these satellite radios could ... |
|
| |
