mod07(1)

mod07(1) - CS 230 Introduction to Computers and Computer...

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CS 230 - Winter 2011 7-1 CS 230 – Introduction to Computers and Computer Systems Module 7 – Epilogue Martin Karsten mkarsten@cs.uwaterloo.ca
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CS 230 - Winter 2011 7-2 von Neumann Architecture CPU, memory, I/O devices performance trends bottom line: imperative programming load, compute, store dominant paradigm in machine-level programming system-level programming
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CS 230 - Winter 2011 7-3 Binary Arithmetic use of powers of 2 simplifies arithmetic powers of 2 are ubiquitous for size and number of units cache blocks page sizes disk blocks compact number representation: hexadecimal
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CS 230 - Winter 2011 7-4 Modularization general engineering/design technique separation of concern –> smaller entities subroutines pipeline stages processes composition of smaller entities cicuits – assembly – C – operating system - . .. spinlock – blocking lock – producer/consumer compiler: scanner, parser, semantic anal, code gen
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CS 230 - Winter 2011 7-5 Stack hardware-supported programming construct to facilitate subroutines and recursion software data structure for reversing order of elements for parsing CFGs
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mod07(1) - CS 230 Introduction to Computers and Computer...

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