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Optical position sensor
Jakubík, Tomáš ; Frýza, Tomáš (referee) ; Dřínovský, Jiří (advisor)
This thesis deals with optical sensors used in computer mice and their possible use as a 2D plane positioning sensor system. The first part of the thesis explains the principles and differences in function of individual sensors, as well as a description of the methods used to determine to position of the sensor. The thesis also addresses the possibility of such a sensor connected to a PC using a device to determine the position of the sensor. In the next part of this work the option to build such a device with the use of microcontrollers is described, including a description of the functions of various parts of the device. Last part of the thesis deals with the control equipment and software processing of information by a computer.
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IS analysis and enhancement scheme
Chasák, Petr ; Jarošová, Lenka (referee) ; Dydowicz, Petr (advisor)
The information system in a dynamic expanding company becomes more and more the key issue. Therefore its actualization and adaptation to the new needs of the company is necessary. The concern of this thesis is to evaluate the currently used information system in the company and to define its imperfections. Further it recommends certain measures that should be implemented as soon as possible to eliminate the imperfections, with respect to the financial demands.
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Internet Criminality
Žurek, Kamil ; Margieta, Jiří (referee) ; Soukup, Tomáš (advisor)
The bachelor thesis attempts to chart internet criminality in the Czech Republic and the world. Describes the most of the crimes, that can be committed on Internet and the crimes, where is computer the main instrument. The ambition of the thesis is introduce with this criminality and compare the results of the questionnaire.
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Performance Evaluation of Graphics Accelerator
Vanek, Juraj ; Jošth, Radovan (referee) ; Herout, Adam (advisor)
This paper deals with possibilities and functions of modern graphic accelerators and with measuring performance under OpenGL interface. Widespread algorithms to render scene in real-time are used. It focuses on how to test every part of accelerator's graphic pipeline as well as measure performance in rendering of advanced effects and theoretical speed at general purpose calculations through graphic processor. This testing is realized by implementing multiple test series and their further evaluation. Final application enables setting of test parameters and outputs a score, by which is possible to judge accelerator's performance in comparison among themselves.
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Software for seeking vulnerable computers in network
Krkoš, Radko ; Pelka, Tomáš (referee) ; Polívka, Michal (advisor)
This thesis concerns about computer system and network infrastructure security. It describes the topic of security holes and vulnerabilities and discusses possibilities for computer attack defense. Common security holes and client and server systems configuration errors are described. There are stated simple rules and advices for configuring network environment according to security and minimalization of failure or violation risk due to security holes and vulnerabilities. Thesis adresses approaches of security hole detection in programs and devices entrusted to administrator, device and security holes inventory control and prevention possibilities. Thesis describes how to execute self security audit and how to process its results. It suggests techniques and methods to administer network, server, or intranet during its lifespan according to security. It also analyses existing available software and evaluates its features and resources with regard to security topic. Software is chosen to simplify work for administrator in some or more parts of security management like network condition analysis, error and vulnerability detection in computer systems, network infrastructure, web applications or applications for network alternation detection. Thesis recommends requirements for security audit application and discusses eligible features in regard of functionality and added value. Created set of scripts simplifies administrator's work by automating common and time consuming tasks and delivers information in compact and simple form, what makes the work more comfortable and shortens the reaction time to crises such as discovery of new security hole or security breach.
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