Computer Programming for Engineers CMPSC 201C Fall 2000

Instructor Dr. Susan Quick Office: 125 Pond Lab Phone: Office Hrs: Mon., Wed., 9:30 – 11:30 a.m. Thurs. 1:30 – 3:00 p.m. Tues. and Fri. by appointment (24 hours notice)

Teaching Assistants Susteric Nidhi Agrawal Narasimhamuthy

Instructor  Will be honest and direct with you and expect the same in return from you.  Will try to be consistent and fair to all students.

Course Objectives  Introductory course in computer programming.  Assumes no computer science background.  Solving problems of a general nature using C++.  Understand algorithms and be able to write programs of moderate complexity

Textbooks  Essential C++ for Engineers and Scientists, Jeri R. Hanly  Introduction to Matlab, Delores M. Etter and David C. Kunicky

Computer Use  Use the Visual C++ compiler on the IBM PCs in CAC Labs  Access UserID and password  At least 2 3.5” diskettes

Grades  Two midterm examinations points each  Exam 1Tuesday 9/26 at 6:30 P.M.  Exam 2Monday 11/6 at 8:15 P.M.  Final examination 250 points  Time and date will be announced by University  Homework Assignments 250 points  Recitation 100 points  Total 1000 points

Large Class ßLectures ßAttend! ßAsk questions ßMore responsibility on student ßBe courteous to neighbor ßRecitations ßAttend ßMore one to one

General Information  Lectures will not follow texts exactly  Expected to attend class  Responsible for material covered in class, announcements, assignments  Exam grades will not be individually curved!

General Information (Cont.)  Copies of handouts will be on shelves outside my office  Assignments should be done using C++ compiler on PCs in CAC labs  Some exam questions may be based on these computers

General Information (Cont.)  Assignments and files placed on Network I drive  Class web page

Questions?

What is a computer  Electronic device  Tool  Not a “magic” black box

Advantages  Fast  Reliable  Does not get tired  Does what you tell it

Disadvantages  Does what you tell it  Is only as good as the programs and data that are entered ===> GIGO  Has no intuitive skill

What can a computer do?  Simple arithmetic  Comparisons/decision making  Communication

Block diagram of a computer Input Units Output Units Arithmetic Logic Unit Control Unit Memory Primary Storage Central Processing Unit Secondary Storage

Primary Storage Unit  Read Only Memory  Random Access Memory  Basic Input/Output System

Memory Organization  Two circuit states correspond to 0 and 1.  Bit (short for binary digit) refers to a single 0 or 1. Bit patterns represent both the computer instructions and computer data.  1 byte = 8 bits  1 KB = 1024 bytes  1 MB = 1024 x 1024 = 1,048,576 bytes  Word = amount of memory that computer views as a single unit

Memory

Operating system Your Program data

Input Devices  Keyboard  Mouse  Disk(s)  Tape drives  Touch screen  etc.

Output Devices  Monitor/Cathode Ray Tube  Disks  CDs  Printers  etc.

Secondary (Auxiliary) Storage Disk Drives  Hard/fixed/internal  Floppy  CD  Removable Media

Remember  Memory (primary storage) is different from disk space (secondary storage)!

Hardware vs Software Hardware  Physical Components  Anything you can touch! Software  Anything that is not hardware  programs

Various types of software  Operating Systems  Application Software  Games  Utilities

Algorithm vs Program  Algorithm: Step-by-step process for solving a problem in a finite time.  Program: Algorithm translated into a language

Remember! ßAll programs are algorithms, but not all algorithms are programs!

Questions  ????