Program Overview

Program Overview

Colorado State University Online offers various academic programs, including Bachelor's Degrees, Master's Degrees, Ph.D. & Doctoral Degrees, Grad Certificates, Courses, and Professional Education.

Academic Programs

• Bachelor's Degrees
• Master's Degrees
• Ph.D. & Doctoral Degrees
• Grad Certificates
  • Undergraduate Minors, Certificates, & Training
  • Professional Development & Training
• Courses
  • Credit Courses
  • Noncredit Courses
  • All-University Core Curriculum
  • Free Online Courses
  • Osher Lifelong Learning Institute
• Professional Education

Course Details

CS 457 - Computer Networks and the Internet

Course Description

Introduction to fundamental concepts in the design and implementation of computer communication networks and their protocols. Principals of communications, local area networks, communication protocols, TCP/IP, and the Internet.

Software/Hardware Requirements

Access to electronic mail, ability to access the Web easily and frequently (a modern browser is recommended), ability to access the CS department computers remotely.

Prerequisite

CS 214 (Software Development) or CS 253 (Problem Solving); CS 370 (System Architecture and Software); STAT 301 (Introduction to Statistical Methods) or ECE 303/STAT 303 (Introduction to Communications Principles) or STAT 307/ERHS 307 (Introduction to Biostatistics) or STAT 311 (Statistics for Behavioral Sciences I) or STAT 315 (Statistics for Engineers and Scientists); Prerequisite courses must be passed with a C or better. Credit not allowed for both CS 457 and ECE 456.

Textbooks and Materials

Please check the CSU Bookstore for textbook information. Textbook listings are available at the CSU Bookstore about 3 weeks prior to the start of the term.

Instructors

Indrajit Ray

Dr. Indrajit Ray is an Associate Professor with the Computer Science Department who joined the faculty at Colorado State University in 2001. Prior to that he was an Assistant Professor in Computer and Information Science at the University of Michigan-Dearborn.

Dr. Ray received the Ph.D. Degree in Information Technology from George Mason University in Fairfax, VA in 1997. His undergraduate and M.E. degrees in Computer Science and Engineering were earned from the Bengal Engineering College and the Jadavpur University in India.

Section 801 (Online)

Registration Details

• Date: Aug 25 - Dec 14, 2025 (16 wks.)
• Time: Asynchronous
• Drop and withdrawal deadlines
  • 100% tuition and fees refunded: September 10, 2025
  • 50% tuition refunded with 'W' grade: October 20, 2025
  • No tuition refunded and 'W' grade: November 14, 2025
• Instructors: Indrajit Ray
• Tuition: $1,960

Tuition and Fees

Listed tuition is subject to Board of Governors’ approval in early summer.