2 Fundamentals of Computer Systems You need to be able to: (a) define a computer system (b) describe the importance of computer systems in the modern world (c) explain the need for reliability in computer systems (d) explain the need for adherence to suitable professional standards in the development‚ use and maintenance of computer systems (e) explain the importance of ethical‚ environmental and legal considerations when creating computer systems. What is a computer system? At its very basic
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Anatomy of contemporary GSM cellphone hardware Harald Welte April 16‚ 2010 Abstract Billions of cell phones are being used every day by an almost equally large number of users. The majority of those phones are built according to the GSM protocol specifications and interoperate with GSM networks of hundreds of carriers. Despite being an openly published international standard‚ the architecture of GSM networks and its associated protocols are only known to a relatively small group of R&D engineers
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introduction to the basic concepts related to the computing field. It also provides you the brief and clean introductory class about various types of the computers. Author: Ali Asghar Manjotho 12/25/2007 A word about the Author and the Book This book is written‚ composed‚ and organized by Mr. Ali Asghar Manjotho — studying at Computer Systems Engineering Department under the kind umbrella of Mehran University of Engineering and Technology Jamshoro bearing the roll number (07CS20). He started
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What are the Parts of Computer? The Parts of a Desktop Computer are: 1. System unit The system unit is the core of a computer system. Usually it’s a rectangular box placed on or underneath your desk. Inside this box are many electronic components that process information. The most important of these components is the central processing unit (CPU)‚ or microprocessor‚ which acts as the "brain" of your computer. Another component is random access memory (RAM)‚ which temporarily stores
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* Computer forensics lab usually conduct a digital forensic analysis * There are many type of computer forensics tool‚ some are free and some are licensed * Forensics lab usually are restricted to outsider What we don’t know * How computer forensics preserve their evidence * Overview of computer forensics lab * Cost to build a computer forensics lab What we need to know * Specific tool that use by computer forensics base on their case * How to build a computer forensics
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COMPUTER CONCEPTS A computer is a machine that processes data and performs tasks according to a set of instructions. To do anything‚ computer must be give specific directions to follow. They get these directions from software. Software‚ such as that used for word processing‚ is a set of step-by-step instruction for the computer‚ written by computer programmers in a programming language like BASIC‚ Pascal‚ or C. Computers also get instructions from you‚ the user. When you use the mouse (more
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Computer graphics are graphics created using computers and‚ more generally‚ the representation and manipulation of image data by a computer. The development of computer graphics has made computers easier to interact with‚ and better for understanding and interpreting many types of data. Developments in computer graphics have had a profound impact on many types of media and have revolutionized animation‚ movies and the video game industry. Overview The term computer graphics has been used in a broad
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Computer Technician I Believe a Computer Technician is a good career for me because I have been around computers for many years now and enjoy them. I began to learn the basics of computers from my father when I was about 9 years old. Since then I have pretty much taught myself and took off in the computer field. I now have 7 networked computers " linked together "‚ help run an internet provider and build web pages. About a year ago my Uncle changed jobs and now he is a Computer Technician
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Computer programming (often shortened to programming) is a process that leads from an original formulation of a computing problem to executable programs. It involves activities such as analysis‚ understanding‚ thinking‚ and generically solving such problems resulting in an algorithm‚ verification of requirements of the algorithm including its correctness and its resource consumption‚ implementation (commonly referred to as coding[1][2]) of the algorithm in a target programming language. Source code is
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HISTORY OF COMPUTER Abacus - The First man-made computing device. - It can perform addition and subtraction - invented in China Pascal’s calculating machine/Pascaline - The first mechanical calculator - Invented by Blaise Pascal - Can perform addition & subtraction Leibnitz calculator - First general-purpose calculating machine - Extended version of Pascal Calculating machine - Can perform multiplication and Division - Invented by Gottfried Leibnitz Automatic
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