This course presents a bottom-up introduction to computer architecture, beginning with digital gates and number representation; building up through the Von Neumann model, Instruction Set Architecture (ISA) and assembly language; and ending with C programs interacting with assembly programs. Most of the concepts in this course will be reinforced through programming assignments in C. In CS 270 students write a number of C programs to learn concepts by programming them and to build confidence in the C programming language, which is an important language used frequently in industry and systems research. There will be at least one deliverable a week.

Section 001 Lecture: 3:30-4:45pm, Tue/Thu, WAGAR 232 Instructor: Sanjay Rajopadhye Office Location: COMSC 340 Office Hours: Tu Th, 10:00-11:00 AM Section 002 Lecture: 11:00am-12:15pm, Tue/Thu, HESTF (Health and Exercise Teaching Facility) 105 Instructor: Andres Calderon Jaramillo Office Hours: Thu and Fri, 2:00-4:00pm, COMSC 120 GTAs Jonathan Byrd Athith Amarnath UTAs Courtney Schulze Laura South Please email inquiries to cs270 (forwarded to instructors, GTAs, and UTAs)

CS 161 (C or better), CS 200 (or concurrent registration), MATH 141 or MATH 155 or MATH 160 (C or better).

Computer Organization (Required):

Introduction to Computing Systems, from bits and gates to C and beyond
Patt and Patel (second edition)

iClickers (Required):

You are required to purchase an iClicker remote for in-class participation. iClicker is a response system that allows you to respond to questions we pose during class, and you will be graded on that feedback and participation. In order to receive this credit, you will need to register your iClicker remote on Canvas.

What	Days	Time	Who	Helper	Where
Lecture (Section 001)	Tue/Thu	3:30pm-4:45pm	Sanjay		WAGAR 232
Lecture (Section 002)	Tue/Thu	11:00am-12:15pm	Andres		HESTF 105
Recitation (L01)	Mon/Wed	2:00pm-2:50pm	Andres	Jonathon & Athith	COMSC 225
Recitation (L02)	Mon/Wed	4:00pm-4:50pm	Laura	Courtney
Recitation (L03)	Wed/Fri	10:00am-10:50am	Athith
Recitation (L04)	Wed/Fri	11:00am-11:50am	Athith
Recitation (L05)	Mon/Wed	5:00pm-5:50pm	Jonathon	Laura & Courtney
Recitation (L06)	Wed/Fri	3:00pm-3:50pm	Courtney	Laura
Recitation (L07)	Mon/Wed	6:00pm-6:50pm	Jonathon

Days	Time	Who	Where
Mon	1:00pm-2:00pm	Jonathon	COMSC 120
Mon	3:00pm-4:00pm	Courtney
Tue	12:30pm-1:30pm	Athith
Wed	12:00pm-2:00pm	Jonathon
Thu	9:00am-11:00am	Athith
Fri	11:00am-12:00pm	Jonathon
Fri	2:00pm-3:00pm	Courtney
Fri	4:00pm-5:00pm	Courtney
Sun	3:00pm-6:00pm	Laura

Days	Time	Who	Where
Mon	9:00am-11:00am	Athith	COMSC 120
Thu	1:00pm-3:00pm	Jonathon
Thu	6:00pm-8:00pm	Athith
Fri	9:00am-10:00am	Jonathon
Fri	12:00pm-1:00pm	Jonathon

Some students have requested our schedule for the entire semester. An overview of the semester is provided here, however, we reserve the right to make changes at anytime!

The course requires demonstration of a student’s grasp of the concepts on evaluations. Here is the grading scheme:

Activity	Weight	Description
Assignments	35%	Programming Assignments and Theory Homework
Recitations	10%	Lab Attendance and Completion
Peer Instruction	5%	In-Class iClicker
Midterm	15%	First Midterm
Midterm	15%	Second Midterm
Final Exam	20%	Comprehensive Final

If you believe you have been graded unfairly, please post a regrade request in Piazza following the guidelines below:

• Make the post private!
• Select p#_regrades as the folder (where # is the number of the programming assignment).
• Explain why you believe you were graded unfairly.

Grades complaints will be considered only for two weeks immediately following when the assignment grade appears on Canvas!

• Assignments will be done individually. As required by the department, we will check for collaboration using a software tool, so do your own work!
• Recitation participation is strongly encouraged. Part of the class grade comes from successfully finishing the assigned lab work.
• Peer Instruction sessions are held during lectures, usually on Thursdays. Scores are weighted as follows: 70% for participation, 30% for correctness.

The assignment of letter grades will be made as follows:

Letter Grade	Points
A	≥90%
B	≥80%
C	≥70%
D	≥60%
F	<60%

We will not assign lower grades than shown. However, your average score on exams must be ≥60% to receive a passing grade in this course.

Midterm and Finals: Make-up exams are only given for extraordinary circumstances (e.g., illness, death of family member). Students must consult with the instructor as soon as possible, preferably before the start of the exam. Examination dates are listed in the syllabus; be aware of them and plan accordingly.

Peer Instruction: Make-ups will be given for missed peer instruction if you have a documented excuse. If you are missing your iClicker during class, submit the answers on a paper with your name and ID to the instructor, for up to 80% credit.

Recitations: Make-ups will be given for missed recitations if you have a documented excuse, please arrange with the instructor or a teaching assistant.

Programming assignments: Programs are submitted electronically. Details of how this is done appears with the first assignment. Always check the progress page for due dates. The due date will include a day and time. The assignment will also specify a late acceptance period which will include a late penalty of 20%. After the late period, electronic submission is closed; students that have not submitted programs receive no points for the assignment.

Theory assignments: Theory assignments must be submitted per the instructions in the assignment. Handwritten and scanned is acceptable, but the handwriting must be legible. The instructors and TAs reserve the right to decide whether or not a paper is legible. If a late period is allowed, late assignments will be accepted subject to a 20% late penalty.

Date	Description
First day of classes	Mon., Aug. 22
Last day of classes	Fri., Dec. 9
Last day for restricted drop	Fri., Aug. 26
Deadline to add without override	Sun., Aug. 28
Last day to withdraw	Mon., Oct. 17
First Midterm	Wed., Sep. 21 (for all recitations) and Thu., Sep. 22 (in-class)
Second Midterm	Thu., Oct. 27, during class
Final Exam (Section 001)	Wed., Dec. 7 (for all recitations) and Wed., Dec. 14, 9:40am to 11:40am
Final Exam (Section 002)	Wed., Dec. 7 (for all recitations) and Wed., Dec. 14, 6:20pm to 8:20pm

The midterm and final exams will be held in the same classroom as regular lectures. Some sections of the midterms will be done during a recitation. The final exam is comprehensive.

All students taking this course are expected to participate actively. This includes asking and responding to questions. Students are also expected to scan the announcements on the home page and the progress page every day for updates. If an assignment changes significantly, we will send an email.