COMPUTER SCIENCE 10: INTRODUCTION TO COMPUTER SCIENCE Dr. Natalie Linnell with credit to Cay Horstmann and Marty Stepp

Who am I?

How I teach  Teaching is my favorite thing!  Your involvement is important  Lots of questions  In-class activities Not graded, as long as you participate  In class we will be writing code, and I will post it after class  My philosophy on my job: It is your job to learn, and it is my job to help you do that.

Who are you?  What’s your major? Year?  Why are you taking this class?  Do you have any programming experience?  Something else about yourself

Take this course if you…  … like solving tricky problems  … like building things  … (will) work with large data sets  … are curious about how Facebook, Google, etc work  … have never written a computer program before  … are shopping around for a major

Course Challenges  Prerequisites?  Math11  …Really, no experience required!  Aptitude?  Most people can learn basic programming  Interest?  CS is creative and rewarding, but it can also be time-consuming  Time?  You can't expect to learn complex skills by listening to lectures  This class will probably have the heaviest workload of any of your classes this term  Study habits?  Your brain needs time to learn. Don't try to do all work the night of the due date  You need time to get stuck, ask for help, get unstuck, get stuck again…

Jobs before graduation  English: 23.5%  Healthcare: 28.7%

Starting salaries Source: Summer 2011 Salary Survey, National Association of Colleges and Employers. Data are for Bachelor's Degree candidates.

High-demand for talent

Diverse opportunities  Software shops (Microsoft, Amazon, Google, Facebook…)  Hard sciences (computational biology…)  Engineering (simulations…)  Healthcare (data management…)  Education (math…)  International development (data gathering…)

Course goals  Be able to apply your understanding  Computer Science is different!  Programming is a skill  By the end of the course, you will:  write medium-scale programs to solve real problems  know some of the kinds of problems computers can solve  recognize beautiful code  recognize ugly hacks

What is programming?  program: A set of instructions to be carried out by a computer.  program execution: The act of carrying out the instructions contained in a program.  programming language: A systematic set of rules used to describe computations in a format that is editable by humans.

Write me a program for making a peanut butter and jelly sandwich  program: A set of instructions to be carried out by a computer.  program execution: The act of carrying out the instructions contained in a program.  programming language: A systematic set of rules used to describe computations in a format that is editable by humans.

What do we notice about your programs?

“Language”

Compiling/running a program 1. Write it.  code or source code: The set of instructions in a program. 2. Compile it. compile: Translate a program from one language to another. 3. Run (execute) it.  output: The messages printed to the user by a program.

With Code::Blocks

Course information

Your responsibilities  Come to every class meeting  There will be activities, done in pairs  Spend two hours out of class for every scheduled hour in class  That means 6 1/2 hours per week outside class  Ask questions right away when you are stuck

Ask Questions  You will be stuck. A lot.  I am too – all the time!  You MUST ask questions  Come to office hours!  You are learning to do something  There is no way to fake your way through this class.

Homework  Due every Wed.  Except HW0  One will be posted by our next class  Start early!  One paper  CS and Society  Grade: 25% HW, 25% each midterm, 25% final  Exams: Jan 28, Feb 15, Mar 22  You MUST be able to attend these dates