CS 201 - Fall 2024.

Welcome to CS 201! 09/09/2024

Logical problem of the day

A father is 21 years older than his child. In exactly 6 years from now, the father will be exactly 5 times as old as the child.

Where's the mother?

https://pollev.com/slade You may also download the app to your phone. Use the "slade" poll id.

Top Ten Reasons to Learn Racket!

Number 7: Unlike other high level languages, racket reflects the principles of the von Neumann computer architecture in which data and instructions are syntactically identical. In Racket, both data and code are lists. In machine language, both data and code are binary numbers. (We will see this when we write assembly language programs for TC-201.)

Canvas Quiz of the Day (need daily password)

Most days, there will be a simple canvas quiz related to the lecture. You need a password to activate the quiz, which I will provide in class. These quizzes will count toward your class participation grade. The quiz is available only during class.

Click for today's quiz.

Note: the collaboration quiz is separate. It coincides with the first homework assignment.

Lecture 5: Racket / UNIX.

Administrivia

From the Yale College Dean's Office:

How to Write an Email to Your Instructor
How *Not* to Write an Email to Your Instructor
Note: like diamonds, emails are forever. See Enron Email Corpus.

I am available for lunch on Monday September 9 at noon at Franklin College Dining Hall.

I have office hours Wednesdays from 4-6 pm, on zoom, id 459 434 2854.

ULA office hours are found at https://csofficehours.org/CS201/schedule. Sign up via the queue.

If you're thinking of taking CPSC 201, please do the following.

Complete this online Student Information form.
Get a course account for CPSC 201 on the Zoo. When you register for this class, your course account should be created within one hour or so of signing up.
Homework assignments: [Assignments]. hw0.rkt revised to define runtests to make the autograder happy. Plus, the autograder wants hours to be an integer. If you lost a point on hours, resubmit with an integer. Also, hw1 is now available.
Familiarize yourself with the Zoo computers using the above instructions for ssh. We have started discussing UNIX. You should try out the commands from the tutorial and class transcript.
(Optional.) Download and install DrRacket on your computer (Racket) and familiarize yourself with it (Choose language: "Use the language declared in the source", #lang racket. Then press the Run button to actually change the language.) If you don't want to install and run DrRacket on your machine, you may run it in person or remotely using your Zoo account.

Racket.

Racket.html (jupyter) lambda

Getting to know UNIX

UNIX Principle 1 . and ..

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