CEG 220 M W 5:35 p'm' 6:50 p'm'

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CEG 220M W 535 p.m. 650 p.m.

• C Programming for Engineers
• Dr. Dale E. Nelson

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Instructor Contact Information

• Instructor Dr. Dale E. Nelson, RC 160, 775-5082
  
• NOTE This number only valid during office hours
•  E-mail dale.nelson_at_wright.edu
• dale.nelson_at_wpafb.af.mil - fast response
•  Hours Immediately after class
• 630-730 p.m. T Th
• Other hours arranged by appointment
• use e-mail for establishing
  appointments
• Course Home Page
•   http//www.wright.edu/dale.nelson/ceg220/ceg220
  .html

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Text Books

• Textbooks
•   Engineering Problem Solving with C, Second
  Edition, D. M. Etter and J. A. Ingber, Prentice
  Hall, 2000
•     Programming with C Second Edition Schaums
  Outlines, Byron Gottfried, McGraw-Hill, 1996
  (Recommended).

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Software

• Software
• Visual C 6
• Microsoft Corp. Software is available in
  on-campus computer labs such as Russ Center 152C.
• Students may borrow software media from the
  Dunbar Library for installation of Visual C on
  a home PC after signing a licensing agreement.
• Use of alternate C compilers must be approved by
  the instructor.

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Grading

• Exams are closed book, closed notes
• Programming Projects (7) 30
• Mid-Term Exam 30
• Comprehensive Final 40
• You cannot pass this class without ALL
  programming projects being completed with a
  (S)atisfactory.

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Grading (cont.)

• GRADES
•   A 100-90
• B 89-80
• C 79-70
• D 69-60
• F 59-0

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Policy

• All work to be turned in is due at the start of
  class on date specified.
• No late exams unless verifiable emergency.
• Any part of a programming project turned in late
  will result in loss of 2 points.
• Exceptions to the late policy may be made unusual
  circumstances when documentation is provided in
  writing..

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Policy (cont)

• All work must be your own sharing of  program
  code will result in one letter grade reduction in
  course for all involved. 
• Sharing ideas and general computer skills with
  others outside of class is encouraged

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Schedule
Topics and project dates may vary. Exams and
Final dates are firm. Specific project due dates
are defined in a special handout.
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Programming Assignments
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Programming ProjectsRequirements
Programming Projects Requirements
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Programmers Block
Programmers Block Style Sheet
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Engineering Problem Solvingwith C

• Chapter 1
• Engineering Problem Solving

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What Are Some Real World Problems

• Why are computers and computer programming so
  important today?
• We cannot afford (time/cost) to build real
  systems
• Computational electromagnetics
• Computational aerodynamics (fluids)
• Computational structural analysis/dynamics
• SPICE
• More computers are used everyday
• Controllers
• Software radio (digital signal processing)
• Imagery

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Computing Systems Hardware and Software

• A computer is a machine designed to perform
  operations specified with a set of instructions
  called a program.
• Hardware refers to the computer equipment.
• keyboard, mouse, terminal, hard disk, printer
• Software refers to the programs that describe the
  steps we want the computer to perform.

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Computer Hardware
Internal Memory
External Memory
CPU
Processor
Input
Output
ALU

• CPU - Central processing unit
• ALU - Arithmetic and logic unit
• ROM - Read only memory
• RAM - Random access memory

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Computer Software

• Operating System - Provides an interface with the
  user
• unix, windows, linux, ...
• Software Tools
• word processors (MicrosoftWord, WordPerfect, ...)
• spreadsheet programs (Excel, Lotus1-2-3, ...)
• mathematical computation tools (MATLAB,
  Mathematica, ...)
• Computer Languages
• machine language
• assembly language
• binary language
• high level languages (C, C, Ada, Fortran,
  Basic, java, COBOL,
• SNOBOL, LISP, Simscript,
  PL1, Prolog, ALGOL)

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History of Personal Computer I

• 1971 First microprocessor Intel 4004
• 1972 Xerox PARC begins development of
  workstation
• 1972 MITS Altair 8800 on cover of
  Popular Electronics
• 1977 Apple computer introduces Apple II
• Radio Shack ships TRS-80
• Commodore exhibits PET computer

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History of Personal Computer II

• 1979 VisiCalc first electronic spreadsheet
• 1980 IBM-Microsoft deal for Acorn Project
• 1981 IBM PC introduced
• 1983 Lotus 1-2-3 spreadsheet
• 1984 Apple Macintosh
• 1990 MS Windows 3.0
• 1991 Linus Torvalds Linux operating system
• 1994 Mosaic Communications Netscape Web
  Browser

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History of Personal Computer III

• 2000 PCs reach 50 penetration in U.S.
  households
• 2001 Federal appeals court reverses
  proposed Microsoft breakup
• 2002 CEG220 students develop next killer
  application.
• 2002 Suddenly Stupid Syndrome Recognized

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Executing a Computer Program
Input data
Compile
Link/load
Execute
Machine language program
C language program
Program output

• Compiler
• Converts source program to object program
• Linker
• Converts object program to executable program

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Key Terms

• Source Program
• printable/Readable Program file
• Object Program
• nonprintable machine readable file
• Executable Program
• nonprintable executable code
• Syntax errors
• reported by the compiler
• Linker errors
• reported by the linker
• Execution/Run-time errors
• reported by the operating system
• Logic errors
• not reported

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The C Programming Language

• General purpose, machine-independent language
• Developed at Bell Labs in 1972 by Dennis Ritchie
• American National Standards Institute(ANSI)
  approved ANSI C standard in 1989

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Why C?

• Popular language in industry and schools
• Very powerful almost anything that can be done
  can be done in C
• Designed for top-down programming (programs
  easier to design)
• Designed for structure (programs easier to read
  and debug)

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Why C?

• Allows modular design (easier for others to
  understand and debug)
• Efficient language (small and fast)
• Portable (programs operate on different computers
  with few changes)
• Computer control (almost absolute control over
  computer)

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Why C?

• Flexibility can create other languages and
  operating systems.
• Disadvantage code can be written so briefly
  that it is almost unreadable!

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Software Life Cycle Phases

• 3 Definition
• 15 Specification
• 14 Coding and modular testing
• 8 Integrated testing
• 60 Maintenance

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Programming Project 1

• Open C compiler
• File new
• Files
• C Source
• Type program in
• Build
• Compile
• Active workspace (answer yes)
• Execute program (!)
• Use Alt-PrtScr to copy window on clipboard
• Paste into Word document

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An Engineering Problem-Solving Methodology

• 1. PROBLEM STATEMENT
• 2. INPUT/OUTPUT DESCRIPTION
• 3. HAND EXAMPLE
• 4. ALGORITHM DEVELOPMENT
• 5. TESTING

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Major Parts of a C Program

• include ltstdio.hgt - preprocessor directive
• main point where execution begins
• () immediately follows main information used
  by program is contained here
• / / - comment
• - each C statement ends with a semicolon
• required indicates beginning and end of
  program instructions