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Main » Files » PAPER PRESENTATION » COMPUTER SCIENCE

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Embedded Systems
Abstract:
Computers have evolved from few, huge mainframes shared by many people, and mini computersthat were smaller but still shared to today’s PCs—millions in number, miniscule in size compared to the mainframes, and used by only one person at a time. The next generation could be invisible, with billions being around and each of us using more than one at a time. Welcome to the world ofembedded systems, of computers that will not look like computers and won’t function like anything we’re familiar with.
COMPUTER SCIENCE | Views: 6793 | Downloads: 1 | Added by: kc | Date: 2011-06-26 | Comments (0)

ABSTRACT

              "HAPTICS”-- a technology that adds the sense of touch to virtual environment .Haptic  interfaces allow the user to feel as well as to see virtual objects on a computer, and so we can give an illusion of touching surfaces, shaping  virtual clay or moving objects around.

               The sensation of touch is the brain’s most effective learning mechanism --more effective than seeing or hearing—which is why the new technology holds so much promise as a teaching tool.

               Haptic technology is like exploring the virtual world with a stick. If you push the stick into a virtual balloon push back .The computer communicates sensations through a haptic interface –a  stick, scalpel, racket or pen that is connected to a force-exerting  motors.

               With this technology we can now sit down at a computer terminal and touch objects that exist only in the "mind" of the computer.By using special input/output devices (joysticks, data gloves, or other devices), users can receive feedback from computer applications in the form of felt sensations in the hand or other parts of the body. In combination with a visual display, haptics technology can be used to train people for tasks requiring hand-eye coordination, such as surgery and space ship maneuvers.

                In this paper we explicate how sensors and actuators are used for tracking the position and movement of the haptic device moved by the operator. We mention the different types of force rendering algorithms. Then, we move on to a few applications of Haptic Technology. Finally we conclude by mentioning a few future developments. 

COMPUTER SCIENCE | Views: 971 | Downloads: 4 | Added by: kc | Date: 2011-05-04 | Comments (3)

INTRODUCTION :

 

The Internet has made large amount of information available to the average computer user at home, in business and education. For many people, having access to this information is no longer just an advantage, it is essential.

By connecting a private network to the Internet can expose critical or confidential data to malicious attack from anywhere in the world. The intruders could gain access to your sites private information or interfere with your use of your own systems. Users who connect their computers to the Internet must be aware of these dangers, their implications and how to protect their data and their critical systems.

Therefore, security of network is the main criteria here and firewalls provide this security. The Internet firewalls keep the flames of Internet hell out of your network or, to keep the members of your LAN pure by denying them access the all the evil Internet temptations.

COMPUTER SCIENCE | Views: 666 | Downloads: 1 | Added by: kc | Date: 2011-05-04 | Comments (0)

Biometrics (ancient Greek: bios life, metron measure) refers to two very different fields of study and application. The first, which is the older and is used in biological studies, is the collection, synthesis, analysis and management of data in biology. Biometrics in reference to biological sciences, or biostatistics, has been studied since the early twentieth century.[1] Biometrics is the science and technology of measuring and analyzing biological data. In information technology, biometrics refers to technologies that measure and analyze human body characteristics, such as fingerprints, eye retinas and irises, voice patterns, facial patterns and hand measurements, for authentication purposes.

Biometric characteristics can be divided in two main classes, as represented in figure on the right:


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COMPUTER SCIENCE | Views: 667 | Downloads: 4 | Added by: kc | Date: 2011-05-04 | Comments (0)

ABSTRACT 
IN DA present day world, online shopping  using wap enables mobile phone has widely come in to use.credit cards serve as a currency during  e-shopping and e- business.
 
as technology has developed in negative side also like hacking and spoofers  misuse credit card no. even though the network has made secure.in this paper we have made a biometric model (integrative voice, finger printing and facial scanning) that can be embedded in a mobile phone, this making e-transaction more secure.the model is very cost and effective as we have tried hard to use the hardware already used in phone. this paper use for image processing or facial recognization and finger print. we have also simulated a few graphs for voice recognition and facial verification using MATLAB 6.0
COMPUTER SCIENCE | Views: 1423 | Downloads: 10 | Added by: kc | Date: 2011-05-03 | Comments (4)