Course record CS

CS 423

Operating Systems Design credit: 3 or

University of Illinois Urbana-Champaign

1,343 grades20 sections8 professors
Grades: 2010–2025
Flunk Score46/100
Mixed record

Professors 8 of 8

Ramnatthan Alagappan 61 grades · 1 term · 2025 3.89GPA
93.4% A
4.9% B
0.0% C
1.6% D
0.0% F

61 letter grades · 1 section · 2025

Compare with the course
Alagappan vs. the course average
A +29.3
B −23.7
C −5.5
D +0.5
F −0.5

Difference in percentage points.

0.0% withdrew · 0 of 61 enrolled.

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Tarek Abdelzaher 417 grades · 5 terms · 2010–2016 3.65GPA
72.9% A
23.5% B
2.2% C
1.2% D
0.2% F

417 letter grades · 6 sections · 2010–2016

Compare with the course
Abdelzaher vs. the course average
A +8.7
B −5.2
C −3.4
D +0.1
F −0.3

Difference in percentage points.

Each term against the course average
Spring 2010Spring 2016

0.7% withdrew · 3 of 420 enrolled.

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Tianyin Xu 398 grades · 5 terms · 2020–2025 3.65GPA
72.4% A
25.6% B
1.3% C
0.0% D
0.8% F

398 letter grades · 5 sections · 2020–2025

Compare with the course
Xu vs. the course average
A +8.2
B −3.0
C −4.3
D −1.1
F +0.2

Difference in percentage points.

Each term against the course average
Spring 2020Fall 2025

1.2% withdrew · 5 of 403 enrolled.

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R H Campbell 32 grades · 1 term · 2010 3.60GPA
65.6% A
34.4% B
0.0% C
0.0% D
0.0% F

32 letter grades · 1 section · 2010

Compare with the course
Campbell vs. the course average
A +1.4
B +5.7
C −5.5
D −1.1
F −0.5

Difference in percentage points.

0.0% withdrew · 0 of 32 enrolled.

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Wade A Fagen-Ulmschnei 84 grades · 1 term · 2021 3.54GPA
66.7% A
21.4% B
11.9% C
0.0% D
0.0% F

84 letter grades · 1 section · 2021

Compare with the course
Fagen-Ulmschnei vs. the course average
A +2.5
B −7.2
C +6.4
D −1.1
F −0.5

Difference in percentage points.

0.0% withdrew · 0 of 84 enrolled.

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Klara Nahrstedt 85 grades · 2 terms · 2011–2013 3.38GPA
45.9% A
44.7% B
9.4% C
0.0% D
0.0% F

85 letter grades · 2 sections · 2011–2013

Compare with the course
Nahrstedt vs. the course average
A −18.3
B +16.0
C +3.9
D −1.1
F −0.5

Difference in percentage points.

0.0% withdrew · 0 of 85 enrolled.

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Elsa Gunter 33 grades · 1 term · 2011 3.32GPA
42.4% A
39.4% B
18.2% C
0.0% D
0.0% F

33 letter grades · 1 section · 2011

Compare with the course
Gunter vs. the course average
A −21.8
B +10.7
C +12.7
D −1.1
F −0.5

Difference in percentage points.

0.0% withdrew · 0 of 33 enrolled.

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Adam M Bates 233 grades · 3 terms · 2017–2019 3.05GPA
35.6% A
43.8% B
15.5% C
3.9% D
1.3% F

233 letter grades · 3 sections · 2017–2019

Compare with the course
Bates vs. the course average
A −28.6
B +15.1
C +9.9
D +2.7
F +0.8

Difference in percentage points.

0.0% withdrew · 0 of 233 enrolled.

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