The University of Massachusetts Amherst
University of Massachusetts Amherst

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ECE 221

Course Summary


Intro. to Digital and Computer Systems







Other restrictions

Open to ENGIN, EE and CS-ENG majors



Term(s) offered

Fall, Winter, Summer (1st session)

Minimum grade needed to graduate


Course(s) that use this one as a prerequisite

ECE 232  Hardware Organization & Design

Honors version/section



  • Starting in Fall 2015, the focus of ENGIN 112 (Intro. to Engineering, Electrical & Computer Engineering) is no longer digital design. Instead, ECE 221 is offered as the prerequisite for ECE 232 (Hardware Organization & Design).

  • ECE 221 is now known as ECE 124.

  • To enroll in the winter or summer version of ECE 221, students will need the instructor's permission.

  • The winter and summer versions of ECE 221 is online, so students do not need to be in Amherst to take this class. However, if they live within an hour or so of Amherst, then they will need to drive to campus for two midterm exams.

  • Students who take ECE 221 during the winter session may take ECE 232 during the spring semester.

  • Students who take ECE 221 during the first summer session may take ECE 232 during the second summer session.

  • Courses offered in the winter and summer terms are administered by CPE (Continuing and Professional Education), which means there is a fee to enroll. For more information, go to the CPE website.

[To see the full list of courses and categories, go to Course Summaries & Notes.]