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Design and Implementation of a Multitask Operating System Kernel Running on HC08
Damborský, Roman ; Růžička, Richard (referee) ; Strnadel, Josef (advisor)
Software for embedded systems is usually designed for performing one particular task. If there is need to serve more tasks at once, solution is used to be dedicated without potential reusability for another application. That is why I've designed an interface which allows simultaneous execution of single tasks independently of their character. Kernel is implemented in consideration of reusability. I analyse individual approaches to solution. I~used Round--Robin algorithm for implementing tasks management. Multitasking is achieved by periodical switching of single tasks. Interrupt subsystem is being used for this. As a target architecture, Motorola HC08 microcontrollers were chosen.
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The Causes of Iraqi War: Why the US Administration decided to invade Iraq in 2003
Bartková Sodomová, Renáta ; Karásek, Tomáš (advisor) ; Karlas, Jan (referee)
The thesis: "The Causes of Iraqi War: Why the US Administration decided to invade Iraq in 2003" focuses on explanation why the administration of the USA made that step. The specification of the roots of war is based on five causes and seventeen subcauses according to the essay of Stephen Van Evera and other scholars, and the paper trough the methodology of text's analyzes investigates behavior, decision-making process and motivations of the US administration (the level of units) and some steps of the US president G. W. Bush (individual level) in the process leading to the war in Iraq. Concerning the causes of war, the paper introduces different concepts of the offense-defense balance and analyzes whether the balance was disrupted. Secondly, it examines the role of cumulative resources in Iraq like oil, territory and state structures and it shows how they influenced the decision. Third, it searches for the linkage among an emergence of a new threat and responses to it which mouthed to the acceptance of the concept of the first move advantage. Fourth, the thesis accounts for the roots of misperception, where they originate and how they operated in perception of the US administration of the Iraqi threat. Finally, the investigation of the last root of conflict explains why and how windows of...
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National Security Strategy of the United States of America 2002: Imperial Grand Strategy?
Ludvík, Jan ; Raška, Francis (advisor) ; Anděl, Petr (referee)
This paper offers a thorough examination of the United States 2002 National Security Strategy. The document is explored in its broader context, which allows us to understand it in its uniqueness and therefore offer sufficient interpretation. Special attention is devoted to the decision making process of the U.S. National Security Council due to primary responsibility of NSC for coordination of American security policy. Further attention is paid to three particular problem- related parts that are often considered to be the most revolutionary issues of this document. Preemption, unilateralism and U.S. support for the spread of democracy are examined in the broader context of the U.S. foreign policy tradition, American identity and historical development. On the basis of thorough research, the paper supposes that all major parts of this particular document are rather compatible with the development of U.S. security policy and they represent rather the outcome of developments than a fundamental change or reformulation of the strategy. The role of strategic documents is implicitly examined as well, while the study suggests that it should be perceived as a product of bureaucratic politics as summarized in a model by Graham Allison.
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Online scheduling of multiprocessor jobs with preemption
Šimsa, Štěpán ; Sgall, Jiří (advisor) ; Kolman, Petr (referee)
Abstract. The thesis is devoted to the problem of online preemptive scheduling of mul- tiprocessor jobs. It gives a summary of previous work on this problem. For some special variants of the problem, especially if we restrict the sizes of jobs to one and two, new results are given, both in the terms of lower bounds and in the terms of competitive al- gorithms. A previously published lower bound is showed to be computed incorrectly and it is replaced by a correct lower bound in this thesis. An algorithm is presented for the special case of four processors and sizes of jobs one and two that is conjectured to achieve the best possible competitive ratio.
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Design and Implementation of a Multitask Operating System Kernel Running on HC08
Damborský, Roman ; Růžička, Richard (referee) ; Strnadel, Josef (advisor)
Software for embedded systems is usually designed for performing one particular task. If there is need to serve more tasks at once, solution is used to be dedicated without potential reusability for another application. That is why I've designed an interface which allows simultaneous execution of single tasks independently of their character. Kernel is implemented in consideration of reusability. I analyse individual approaches to solution. I~used Round--Robin algorithm for implementing tasks management. Multitasking is achieved by periodical switching of single tasks. Interrupt subsystem is being used for this. As a target architecture, Motorola HC08 microcontrollers were chosen.
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