Catalog Description: The internal organization and operation of digital computers. Machine architecture, support for high-level languages (logic, arithmetic, instruction sequencing) and operating systems (I/O, interrupts, memory management, process switching). Elements of computer logic design. Tradeoffs involved in fundamental architectural design decisions.

Units: 4

Also Offered As: COMPSCI 61C

Prerequisites: 61A, along with either 61B or 61BL, or programming experience equivalent to that gained in 9C, 9F, or 9G.

Formats:
Summer: 6.0 hours of lecture, 2.0 hours of discussion, and 4.0 hours of laboratory per week
Fall: 3.0 hours of lecture, 1.0 hours of discussion, and 2.0 hours of laboratory per week
Spring: 3.0 hours of lecture, 1.0 hours of discussion, and 2.0 hours of laboratory per week

Grading Basis: Student Option

Final Exam Status: Yes

---

Class Schedule (Spring 2026):
CS 61C – MoWeFr 11:00-11:59, Evans 10 – Lisa Yan

Class Notes
- Time conflicts are not allowed.

- Lectures will be recorded.

Links:

• EECS Course Archives (CalNet authentication required)
• CS enrollment policies
• EE enrollment policies
• HKN course maps