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WEEK1 - BIL106E Introduction to Scientific Engineering...

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Asıl alt ba ş lık stilini d ü zenlemek i ç in tıklatın  BIL106_WEEK1_2004 BIL106E Introduction to Scientific & Engineering Computing (F)
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 BIL106_WEEK1_2004 22 Working environment q Linux n Text editor  n compiler 
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 BIL106_WEEK1_2004 33 Introduction to computing What is a computer? o The computer is an automatic device that performs  calculations and makes decisions and has capacity of  storing and instantly recalling  vast amount of  information. Why we use a programming language? o The main reason for learning a programming language is to use the computer to  model and solve scientific and engineering problems
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 BIL106_WEEK1_2004 44 How do we use computers in science  and engineering? o To organize and analyze data n Excel, Access, ... o To understand the implications of  a model of ( i.e.  to  simulate ) a  natural or human-made system
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 BIL106_WEEK1_2004 55 Simulation of  natural/artificial systems o Build  a conceptual  à  quantitative model (most  of the time, write down the appropriate  equations) o Formulate a solution   to these equations using  numerical methods n Data structures + algorithms o Program  these data structures and algorithms  in a language
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 BIL106_WEEK1_2004 66 A brief history of computing  machines  o Early computing devices n 1822: Charles Babbage - Difference Engine - Analytical Engine Ada Augusta - the first programmer n 1944: Mark I, an electromechanical computer o Electronic computers o First generation - vacuum tubes n 1946: ENIAC - Electronic Numerical Integrator and Computer n UNIVAC - Universal Automatic Computer o Second generation [1959-1965]: transistors n 1958: IBM 7090 n 1963: PDP-8, the first minicomputer
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 BIL106_WEEK1_2004 88
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 BIL106_WEEK1_2004 1010 Computer Structure o A computer usually has three main parts: n Input devices (keyboard, mouse, etc.) n Output devices (screen, printer, etc.) n Hard disc (motherboard, external memory, etc.) o C entral  P rocessing  U nit ( CPU ) is the heart of the computer (has Registers) n Controls the operation of the entire system n Performs the arithmetic and logic operations ( ALU ) n
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