CS 124

Spring 2026 All Classes

All Classes

Introduction to Computer Science I

SHOW FINAL EXAM SCHEDULE

Credit: 3 hours.

Basic concepts in computing and fundamental techniques for solving computational problems. Intended as a first course for computer science majors and others with a deep interest in computing.

Credit is not given for both CS 124 and CS 125. Prerequisite: Three years of high school mathematics or MATH 112.

This course satisfies the General Education Criteria in Fall 2022 for:

Quantitative Reasoning I

My Favorites

My Schedule

Section Status updates every 10 minutes.

CS 124 class schedule data for spring 2026
CRN	Type	Section	Time	Day	Location	Instructor	Section Details
71571	Online Lecture	AL1	ARRANGED	n.a.	n.a.	Challen, G	Part of Term: 1 Date Range: 01/20/26-05/06/26 Degree Notes: Quantitative Reasoning I course. Section Info: This section is for CS majors and CS + X only. For up-to-date information about CS course restrictions, please see the following link: http://go.cs.illinois.edu/CSregister Restriction(s): Restricted to Undergrad - Urbana-Champaign. Restricted to CS and blended CS majors students.
71572	Online Lecture	AL2	ARRANGED	n.a.	n.a.	Challen, G	Part of Term: 1 Date Range: 01/20/26-05/06/26 Degree Notes: Quantitative Reasoning I course. Section Info: This section is intended for non CS majors. For up-to-date information about CS course restrictions, please see the following link: http://go.cs.illinois.edu/CSregister Restriction(s): Restricted to Undergrad - Urbana-Champaign. Not intended for CS and blended CS majors students.
71578	Discussion/ Recitation	AYF	11:00AM -11:50AM	T	4029 Campus Instructional Facility	Challen, G	Part of Term: 1 Date Range: 01/20/26-05/06/26 Degree Notes: Quantitative Reasoning I course.
71579	Discussion/ Recitation	AYG	11:00AM -11:50AM	T	4025 Campus Instructional Facility	Challen, G	Part of Term: 1 Date Range: 01/20/26-05/06/26 Degree Notes: Quantitative Reasoning I course.
71580	Discussion/ Recitation	AYH	1:00PM -1:50PM	T	4029 Campus Instructional Facility	Challen, G	Part of Term: 1 Date Range: 01/20/26-05/06/26 Degree Notes: Quantitative Reasoning I course.
71581	Discussion/ Recitation	AYI	1:00PM -1:50PM	T	4025 Campus Instructional Facility	Challen, G	Part of Term: 1 Date Range: 01/20/26-05/06/26 Degree Notes: Quantitative Reasoning I course.
71582	Discussion/ Recitation	AYJ	2:00PM -2:50PM	T	4029 Campus Instructional Facility	Challen, G	Part of Term: 1 Date Range: 01/20/26-05/06/26 Degree Notes: Quantitative Reasoning I course.
71583	Discussion/ Recitation	AYK	2:00PM -2:50PM	T	4025 Campus Instructional Facility	Challen, G	Part of Term: 1 Date Range: 01/20/26-05/06/26 Degree Notes: Quantitative Reasoning I course.
71584	Discussion/ Recitation	AYL	3:00PM -3:50PM	T	4029 Campus Instructional Facility	Challen, G	Part of Term: 1 Date Range: 01/20/26-05/06/26 Degree Notes: Quantitative Reasoning I course.
78397	Discussion/ Recitation Discussion/ Recitation Online	WWC WWC WWC	4:30PM -5:45PM 4:30PM -5:30PM ARRANGED	M R n.a.	Location Pending Location Pending n.a.	Challen, G Challen, G Challen, G	Part of Term: 1 Date Range: 01/20/26-05/06/26 Degree Notes: Quantitative Reasoning I course. Section Info: This section is for students at Wilbur Wright Community College who will view the online lectures asynchronously while attending required discussions at Wilbur Wright; see your UIUC contact for the specific schedule.