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COM SCI 181 · Dis 1B

Theory of Computing

Fall 2026Zhao, H.4 units

Seats, time, final and grades

Seats

Waitlist, 0 of 7 places taken.

60 of 60 enrolled.

Its lecture reads waitlist (150 of 150 enrolled): you attend both, so this seat is not one you can take while that holds. The way in is the lecture's waitlist, at 5 of 20.

Meets

F 2:00pm-3:50pm

This discussion only. You also attend Lec 1.

Final

Thu 10 Dec, 11:30am to 2:30pm

One exam for the whole class, Los Angeles time.

Read 3 days ago.

Grades

3.18
predicted, all instructors · 2,145 grades

2,145 letter grades, everyone who has taught COM SCI 181.

Read 2 hours ago. The latest refresh is overdue. Seats and instructors may have changed since. Check the registrar before enrolling.

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Before you can enroll

Registrar's Restrictions cell, read 2 days ago: "Computer Engineering, Com Sci, Com Sci and Engineering, Electrical Engineering, Ling of Com Sci, Undeclared Engineering Majors, or Cog Sci, C&S Bio, Math of Computation Majors or Premajors or Bioinfo, or Data Engineering Minors, and Undergraduate Students Only".

Tell dibs what you have already taken and this line will say which of these you have. Your list.

From the registrar

Students who enroll in upper-division courses offered by the Samueli School without completing the requisites are subject to disenrollment after the second class meeting. If necessary, consult with an OASA counselor through MyUCLA Message Center.

Restrictions read 2 days ago. dibs re-reads these slowly because they rarely change; watch the section and it moves to every 6 hours.

When it meets

Mon
Tue
Wed
Thu
Fri
6am
7am
8am
9am
10am
11am
12pm
1pm
2pm
3pm
4pm
5pm
6pm
7pm
8pm
9pm
10pm

Meets: F 2:00pm-3:50pm

Lecture: MW 6:00pm-7:50pm

Geology Building 3656

Grades

3.18
predicted, all instructors · 2,145 grades

Of the 4 people in the grade record for COM SCI 181, the 2 with the most grades: MEKA, RAGHU at 3.37 over 1,036 grades and SHERSTOV, ALEXANDER at 2.73 over 603 grades.

A range
42%
P/NP
0%
D/F/W
5.9%

Full grade history for COM SCI 181

What students say

dibs measures outcomes: grades, seats, how fast it fills. For what the class is actually like to sit in, BruinWalk has the reviews.

What the work looks like

  • Exams mentioned, no number given, said by 7 reviewers
  • Problem sets mentioned, no number given, said by 6 reviewers

Read from 124 reviews 16 days ago. dibs counts only what a review actually states, so a kind of work nobody mentioned is absent rather than zero.

Will it still be here

high risk chance of closing before your enrollment pass.

Final enrollment per term from four years of grade data. Summer excluded: different population, different pass structure.

  • 20421F
  • 10522W
  • 14822S
  • 24922F
  • 9823W
  • 14823S
  • 21523F
  • 5924W
  • 15024S
  • 18424F
  • 8925W
  • 15725S
  • 18425F
Enrollment by term: 21F 204, 22W 105, 22S 148, 22F 249, 23W 98, 23S 148, 23F 215, 24W 59, 24S 150, 24F 184, 25W 89, 25S 157, 25F 184

Peak 249 · most recent 25F at 184

Seats over time

Nothing read since 1 Oct, 2 hours ago. Over about 1 month before that, same seat count, but the status went closed to waitlist and the waitlist went 7 of 7 to 0 of 7.

60 of 60 · no seats left

All 15 readings say 60 of 60.

18 Aug 04:309 Sep 10:561 Oct 17:23 · 2 hours ago
dibs read 123 of the 897 hours its hourly record covers, 14%, and did not look in 774. dibs had no hourly record before 25 Aug, which is the other 173 of 1070 plotted.60 of 60 enrolled at the newest reading, 2 hours ago, and no seats left. Seats from 18 Aug 04:30 to 1 Oct 17:23, 60 to 60. The line is flat across the whole window: recorded enrollment counts match. Changes between reads may be missed. dibs read 123 of the 897 hours its hourly record here covers, 14%. An hour marked as read confirms a check, not continuous monitoring. That check recorded no change; changes between checks may be missed. For 774 hours dibs was keeping a record and did not reach this section. Nothing before 25 August at 09:00, where this section's record starts, has a read either way, which is 173 hours of this window. Where the drawing is faint or broken, that never means the readings are doubtful. It means the stretch between them is unaccounted for.

A dot is a reading. Recorded enrollment counts match, so the line is flat across the whole window: it says when dibs looked rather than what changed. The last dot is the last time dibs read this section, moved or not, and that was 2 hours ago. It is the last thing dibs saw, not where the count is now.

Show the readings (15)
Recorded Enrolled Capacity Status Waitlist Hours read
1 Oct 17:23 60 60 waitlist 0 of 7 3 of 18
1 Oct 00:22 60 60 waitlist 0 of 7 2 of 10
30 Sep 15:02 60 60 waitlist 1 of 7 3 of 18
29 Sep 22:52 60 60 waitlist 4 of 7 4 of 23
29 Sep 00:42 60 60 waitlist 5 of 7 3 of 14
28 Sep 11:32 60 60 waitlist 6 of 7 2 of 7
28 Sep 05:02 60 60 waitlist 5 of 7 2 of 8
27 Sep 22:02 60 60 waitlist 6 of 7 5 of 27
26 Sep 20:02 60 60 closed 7 of 7 10 of 61
24 Sep 08:52 60 60 waitlist 6 of 7 5 of 25
23 Sep 08:52 60 60 closed 7 of 7 4 of 17
22 Sep 16:42 60 60 waitlist 6 of 7 34 of 241
12 Sep 16:12 60 60 closed 7 of 7 5 of 23
11 Sep 18:40 60 60 waitlist 6 of 7 54 of 591, 173 no hourly record
18 Aug 04:30 60 60 closed 7 of 7 -
How readings and alerts work

A reading and an hourly record are different things, and most charts here hold more of the second missing than present. dibs has taken readings of a section since long before it began keeping an hour-by-hour log of when it looked, so the empty stretches are dibs saying it was not keeping that log yet, not that it looked and found nothing. That is the age of the record and not a fault.

Seat counts show the last successful read, not live availability. Refreshes can be delayed by request limits or upstream interruptions. Watched sections receive priority, but an hourly update for every section is not guaranteed.

The registrar can change a seat count between our checks. Alerts depend on dibs detecting an opening and completing delivery; a quiet watch does not prove that no seat opened. Check the registrar before enrolling.

Class chat

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