volumes and video data‚ especially in real-time applications‚ the use of classic encryption methods like DES‚ AES‚ ...‚ is not efficient in terms of being time cosuming. In this article‚ a new method is proposed to encrypt digital images‚ using chos systems and utilizing DNA patterns. A central idea in the method suggested is to produce a pseudo-random DNA strand using chaos functions‚ which an encrypted strand is created‚ using the random strand and the strand produced from the main image. Also‚ in
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affecting the computer system in terms of data loss and malfunctioning of programs. By taking simple precautionary measures the unexpected hazards can be completely eliminated. The most significant preventive measure is timely backing up the data. The other involves physical safety and installation of anti-virus programs. One factor to be kept in mind is that without proper physical safety no data is safe‚ as the hardware parts including motherboard‚ processor‚ and storage system constitute a
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Education by Computers – a Better Way? This study examines the role of computers in education in order to show their importance in it and accordingly the reasons. The aim of the researcher is to show an irrefutable irreplaceability of computers in the educational industry‚ inclosing some notable facts and investigations. The researcher also provides some key advantages of the education by computers‚ comparing a traditional method of study with a study via computers. Computers are the future
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4-1 Product and Service Design Operations Management William J. Stevenson 8th edition 4-2 Product and Service Design CHAPTER 4 Product and Service Design Operations Management‚ Eighth Edition‚ by William J. Stevenson Copyright © 2005 by The McGraw-Hill Companies‚ Inc. All rights reserved. McGraw-Hill/Irwin 4-3 Product and Service Design Product and Service Design • Major factors in design strategy Cost Quality • Time-to-market • Customer satisfaction •
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3 ➢ Overview of Operating System ➢ Components and functions of operating systems………………………….........4-5 ➢ Different versions of Windows…...………………………………………………....6 ➢ Installation of Windows Operating Systems ➢ Procedures to install Windows………………………………………………………7 ➢ Methods of supporting operating systems………………...……………………...8 ➢ Possible concerns when installing and maintaining operating systems………..8 ➢ Troubleshooting and
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Use case name: Request for Plotter sheet ID: 1 Importance level: High Primary actor: Student Short description: Events to happen when requesting for a plotter sheet. Trigger: Filled in Plotter Sheet Type: External Major Inputs Major Outputs Description Source Description Destination Subject Student EDP Code Student Filled in Plotter sheet Student Time Student Days Student Room No. Student Major Steps Performed Information for Steps
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auditor evaluates the efficacy of internal control system? Ans: The auditor has to decide whether he can place reliance on the internal control. If internal control is adequate‚ he can restrict nature‚ timing and extent of his checking accordingly. If not‚ he is left with no alternative but to resort to detailed checking. The manner of evaluation of internal control may be in the following lines: 1. Making preliminary evaluation of the system 2. Compliance procedures to evaluate the adequacy
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Computers in Education By Carla Cooper and Evelia Ramirez December 2006‚ University of California at Berkeley www.consttutioncenter.org “Today‚ education is perhaps the most important function of state and local governments. Compulsory school attendance laws and the great expenditures for education both demonstrate our recognition of the importance of education to our democratic society. It is required in the performance of our most basic public responsibilities‚ even service in the armed
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Outline and Evaluate Research into the Relationship between the Immune System and Stress Related Illness There is evidence to suggest acute stressors can cause suppression of the immune system and decrease immune cell functioning. The study by Kiecolt-Glaser et al. (1984) investigated whether the stress of taking exams caused a change in the amount of white blood cells in the blood. Kiecolt-Glaser studied 49 male and 26 female first year medical students at the Ohio State University College
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of graphic design made in Switzerland. It became famous through the art of very talented Swiss graphic designers‚ but it emerged in Russia‚ Germany and Netherlands in the 1920’s. This style in art‚ architecture and culture became an ‘international’ style after 1950’s and it was produced by artists all around the globe. Despite that‚ people still refer to it as the Swiss Style or the Swiss Legacy. This progressive‚ radical movement in graphic design is not concerned with the graphic design in Switzerland
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