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15,284 courses · 10,920 prerequisite links · UCLA General Catalog 2026-27

COM SCI 31 — Introduction to Computer Science ICOM SCI 31COM SCI 32 — Introduction to Computer Science IICOM SCI 32COM SCI 33 — Introduction to Computer OrganizationCOM SCI 33COM SCI 35L — Software ConstructionCOM SCI 35LCOM SCI 111 — Operating Systems PrinciplesCOM SCI 111
COM SCI 31 and everything downstream of it — from UCLA’s published requisites.

In the catalog

COM SCI 31Introduction to Computer Science I4 unitsCOM SCI 180Introduction to Algorithms and Complexity4 unitsMATH 32ACalculus of Several Variables4 unitsMATH 61Introduction to Discrete Structures4 unitsPHYSICS 1BPhysics for Scientists and Engineers: Oscillations, Waves, Electric and Magnetic Fields5 unitsCHEM 20BChemical Energetics and Change4 unitsLIFESCI 7ACell and Molecular Biology5 unitsPSYCH 100APsychological Statistics4 unitsECON 11Microeconomic Theory4 unitsSTATS 100AIntroduction to Probability4 units
PHILOS 22Introduction to Ethical Theory5 unitsART HIS 100Art Historical Theories and Methodologies4 unitsEC ENGR 102Systems and Signals4 unitsCOMPTNG 10AIntroduction to Programming5 unitsASTR 115Introduction to Galactic Astronomy4 unitsMCD BIO 165ABiology of Cells5 unitsPOL SCI 40Introduction to American Politics5 unitsGEOG 5People and Earth's Ecosystems5 units