'1 bit' diaporamas de présentation

Chapter 4: Arithmetic for Computers (Part 1)

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Counting

Counting. Chapter 6. With Question/Answer Animations. Chapter Summary. The Basics of Counting The Pigeonhole Principle Permutations and Combinations Binomial Coefficients and Identities Generalized Permutations and Combinations. The Basics of Counting. Section 6 . 1. Section Summary.

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4123702 Data Communications System

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Smart-Card Security under the Threat of Power Analysis Attacks

Smart-Card Security under the Threat of Power Analysis Attacks. Robert Sloan, U. Illinois Chicago Joint work with Tom Messerges and Ezzy Dabbish, Motorola Labs. Old Puzzle/Joke. Employee daily takes 1 brick in wheelbarrow to his car at quitting time. Bricks are very cheap.

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Spread Spectrum

Spread Spectrum. Chapter 7. Spread Spectrum. Input is fed into a channel encoder Produces analog signal with narrow bandwidth Signal is further modulated using sequence of digits Spreading code or spreading sequence Generated by pseudonoise, or pseudo-random number generator

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Detecting Covert Timing Channels: An Entropy-Based Approach

Detecting Covert Timing Channels: An Entropy-Based Approach. Steven Gianvecchio Haining Wang College of William and Mary. Outline. Background Covert Timing Channels Detection Methods Entropy-Based Approach Experimental Evaluation Potential Countermeasures Conclusion. Outline.

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March 24, 2005 Prof. Andreas Savvides Spring 2005 eng.yale/courses/2005s/eeng449b

EENG 449bG/CPSC 439bG Computer Systems Lecture 16 Instruction Level Parallelism II Dynamic Branch Prediction. March 24, 2005 Prof. Andreas Savvides Spring 2005 http://www.eng.yale.edu/courses/2005s/eeng449b. Announcements. Reading for this lecture: Chapter 3, sections 3.4 & 3.5

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COMP 482: Design & Analysis of Algorithms John Greiner

COMP 482: Design & Analysis of Algorithms John Greiner. Course Overview. Pragmatics. Prerequisites Textbook Assignments Mostly written homeworks, roughly weekly One programming & writing project Exams Midterm & final, both take-home Slip days. Course Web Page.

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Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [The ParthusCeva Ultra Wideband PHY proposal ] Date Submitted: [03 Mar, 2003] Source: [ Michael Mc Laughlin, Vincent Ashe ] Company [ ParthusCeva Inc. ]

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Digital Logic

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Data Compression

Data Compression. Basics. Uniquely Decodable Codes. A variable length code assigns a bit string ( codeword ) of variable length to every symbol e.g. a = 1, b = 01, c = 101, d = 011 What if you get the sequence 1011 ?

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COMP211 Computer Logic Design Lecture 6. Digital Building Blocks #6 Memory

COMP211 Computer Logic Design Lecture 6. Digital Building Blocks #6 Memory. Prof. Taeweon Suh Computer Science Education Korea University. Memory. Digital systems including computer systems require memories to store data Registers (made from flip-flops) are kind of memory

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Multimedia Data Mining using P-trees*

Multimedia Data Mining using P-trees*. William Perrizo,William Jockheck, Amal Perera, Dongmei Ren, Weihua Wu, Yi Zhang Computer Science Department North Dakota State University, USA MDM/KDD2002 Workshop Edmonton, Alberta, Canada July 23, 2002. * P-tree technology is patent pending by NDSU.

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Lecture 15: Combinational Circuits

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PIC 16F84A Instructions

PIC 16F84A Instructions. Dr. Iyad Jafar. Introduction. Every computer can recognize and execute a group of instructions called the Instruction Set These instruction are represented in binary ( machine code )

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Dynamic Hardware Branch Prediction

Dynamic Hardware Branch Prediction. Goal Allow the processor to resolve the outcome of a branch early, thus preventing control dependences from causing stalls. Branch-Prediction Buffer. Simplest Branch history table

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The Instruction Set Architecture Level

The Instruction Set Architecture Level. Dept. of Computer Science Virginia Commonwealth University. ISA level. Interface between the software and hardware. Build compiler. Build compiler. Common intermediate form. Build H/W, execute ISA program directly. Backward compatible.

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CSC 4250 Computer Architectures

CSC 4250 Computer Architectures. October 27, 2006 Chapter 3. Instruction-Level Parallelism & Its Dynamic Exploitation. Nested Loops. DADDIU R1,R0,#80 Loop1: L.D F2,1600(R1) DADDIU R2,R0,#40 Loop2: L.D F0,1000(R2) ADD.D F0,F0,F2 S.D F0,1000(R2) DADDIU R2,R2,#?8 BNEZ R2,Loop2

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Minterm and MAXTERM Expansions

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???????

???????. ???. module rotate_right( input clk, input reset, output [7:0] led ); reg [7:0] q; wire clkm; reg [31:0] divider; // ???? // ???? 1 bit------------------------------------------------ always@( posedge clkm , negedge reset ) begin if ( !reset )

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