Seminar Topics For Information Technology
Speech-enabled Internet portals
Speech-enabled Internet portals are quickly becoming the hottest trend in E-commerce – broadening the access to internet content to everyone with the most universal communications device of all, a telephone. Voice portals purt all kinds of information at a customers fingertips anytime, anywhere. Customers just dial into the voice portal’s prescribed number and they use simple voice commands to access whatever information they need. It’s quick, easy and effective, even from a car or the airport. Today’s voice portal are just the tip of the iceberg-the first step in changing the way people access Internet content and, ultimately, how businesses and consumers will conduct business over the Internet. Over the next few years, voice portals-and core technologies behind then are posed to businesses view and Internet with their customers.Voice portals are changing the telephone interaction from a vendor-centric to a customer-centric experience-increasing satisfaction for customers while improving efficiency and cutting costs for businesses. A voice portal provides telephone users with a natural language interface to access and retrieve web content. An Internet browser can provide web access from a computer but not from a telephone. A voice portal is a way to do that. Of course simple access and retrieval of information is just the beginning. A voice portal can also provide users access to virtual personal assistance and web-based unified messaging applications.Voice portals can also cut operating expenses by freeing up agent time and replacing human operators with an easy-to-use automated solution. They also provide new revenue opportunities by opening up the possibility of new subscription services or building revenue through advertising.Voice portals are the next frontier in convergence, the intersection of the Internet And Telecommunications, blurring the distinctions among voice and data,Computers and telephones and like any frontier, the rewards are great for Staking your claim early.The voice portal reference system is a packaged, integrated hardware and Software reference system for building hardened E-Business and speech-enabled voice portal solutions. Combining the power of server technology with telephony interface boards in an integrated server reference system, it is embraced by leading speech-technology providers.
VHDL
VHDL is an acronym for Very high speed integrated circuit Hardware Descriptive Language. It was developed by a team of three companies IBM, TEXAS INSTRUMENTS and INTERMETRICS for DoD. It has won IEEE and ANSI standardization. VHDL can design a digital system varying in complexity from that of a simple gate to a complete digital electronic system. The digital system can be described hierarchically. Timing can also be explicitly modeled in the same description.VHDL can describe a system at different levels. 1.Behavioral description 2.Dataflow description 3.Structural Description.The same VHDL code can be used for documentation, verification and synthesis of large designs, thus saving a lot of effort. VHDL language supports flexible design methodologies, naturally follows a top down methodology. i.e. a system is first defined at a higher level and tested using simulator, after debugging at this level is gradually refined, leading to a structural description closely related to the hardware. Finally, the structure can be realized in hardware using any technology since VHDL is technology independent.
Tunable lasers
Tunable lasers as the name suggests are lasers whose wavelengths can be tuned or varied. They play an important part in optical communication networks. Recent improvements in tunable laser technologies are enabling highly flexible and effective utilization of the massive increases in optical network capacity brought by large-scale application of dense wavelength division multiplexing. Several tunable laser technologies have emerged, each with its own set of tradeoffs with respect to the needs of particular optical networking applications. Tunable lasers are produced mainly in 4 ways: The distributed feedback laser (DFB), the external cavity diode laser, the vertical cavity diode laser and the micro electro mechanical system (MEMS) technology. Tunable lasers help network administrators to save a lot of cost, by allowing them to efficiently manage the network with lesser number of spares. They also enable reliable functioning of the optical network. Changing traffic patterns, customer requirements, and new revenue opportunities require greater flexibility than static OADMs can provide, complicating network operations and planning. Incorporating tunable lasers removes this constraint altogether by allowing any channel to be added by the OADM at any time.
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