CS240: Calendar

This tentative calendar represents a best guess for the course schedule, but aspects of it may change during the semester.

In Fall 2026, the first of the three lab sections is held on Tuesdays, not Wednesdays. The Wednesday calendar entries apply to Tuesday labs as well.

Calendar

Computational Building Blocks
Date	Lecture	Reading summary (click on topics to the left for details)	Lab	Work
Tuesday 1 September	Lecture: topic The Plan Lecture: topic Digital Logic	Reading summary (click on topics to the left for details): Preparing for Class Meetings in CS240 (Digital Logic reading 1)		Assign: Intros
Wednesday 2 September			Lab: lab Transistors to Gates	paper Assign: Gates
Friday 4 September	Lecture: topic Digital Logic	Reading summary (click on topics to the left for details): Finish Digital Logic reading		Due: Intros
Date	Lecture	Reading summary (click on topics to the left for details)	Lab	Work
Tuesday 8 September	Lecture: topic Digital Logic Lecture: topic Data as Bits	Reading summary (click on topics to the left for details): Data as Bits: watch videos 1-5, skim readings 1-3		Assign: Zero
Wednesday 9 September			Lab: lab Software Tools Lab: lab Data as Bits	paper Checkpoint: Gates
Friday 11 September	Lecture: topic Data as Bits Lecture: topic Integer Representation	Reading summary (click on topics to the left for details): Data as Bits: videos 6--15, review readings 1-3 as needed; Integer representation: videos 5--15, review readings as necessary
Date	Lecture	Reading summary (click on topics to the left for details)	Lab	Work
Monday 14 September				paper Due: Gates
Tuesday 15 September	Lecture: topic Integer Representation Lecture: topic Combinational Logic Lecture: topic Arithmetic Logic	Reading summary (click on topics to the left for details): Integer Representation: Complete any missed videos and readings; Combinational Logic: Reading 1; Skim Arithmetic Logic readings 1-2.		Due: Zero code Assign: Bits
Wednesday 16 September		Reading summary (click on topics to the left for details): Finish Integers videos. Skim Arithmetic Logic readings 1-2.	Lab: lab Combinational Logic Lab: lab Arithmetic Logic
Friday 18 September	Lecture: topic Arithmetic Logic
Date	Lecture	Reading summary (click on topics to the left for details)	Lab	Work
Monday 21 September				code Checkpoint: Bits
Tuesday 22 September	Lecture: topic Sequential Logic	Reading summary (click on topics to the left for details): Skim Registers Reading 1; Skim one option for Arch Reading 1.
Wednesday 23 September			Lab: lab Sequential Logic
Friday 25 September	Lecture: topic A Simple Processor	Reading summary (click on topics to the left for details): Review the reading as needed.		code Due: Bits paper Assign: Arch
Date	Lecture	Reading summary (click on topics to the left for details)	Lab	Work
Tuesday 29 September	Lecture: topic A Simple Processor	Reading summary (click on topics to the left for details): Videos 1-2 as needed; CSAPP 2.1.0, 2.1.3; S1 of Pointer Basics.
Wednesday 30 September		Reading summary (click on topics to the left for details): Skim Reading 2 with a focus on RAM	Lab: lab Processor Datapath
Thursday 1 October				paper Checkpoint: Arch
Friday 2 October	Lecture: topic Programming with Memory	Reading summary (click on topics to the left for details): Review videos (1-13, 15-17) and readings as needed.
Hardware-Software Interface
Date	Lecture	Reading summary (click on topics to the left for details)	Lab	Work
Tuesday 6 October	Lecture: topic Programming with Memory	Reading summary (click on topics to the left for details): Memory videos 20-21. x86 Basics video 1.		paper Due: Arch code Assign: Pointers
Wednesday 7 October			Lab: lab Pointers and Arrays in C
Friday 9 October	Lecture: topic x86 Basics
Date	Lecture	Reading summary (click on topics to the left for details)	Lab	Work
Monday 12 October	Lecture: Fall break
Tuesday 13 October	Lecture: Fall break
Wednesday 14 October			Lab: lab x86 Prep	code Checkpoint: Pointers
Friday 16 October	Lecture: topic x86 Basics Lecture: topic x86 Control Flow	Reading summary (click on topics to the left for details): x86 Basics Videos 8-9, x86 Control Flow readings 1 & 2.		code Due: Pointers code Assign: Commands Info: HW Exam
Date	Lecture	Reading summary (click on topics to the left for details)	Lab	Work
Monday 19 October	Lecture: Exam 1 HW period 1 (choose one) 2-10pm
Tuesday 20 October	Lecture: topic x86 Control Flow Lecture: topic x86 Procedures, Call Stack Lecture: Exam 1 HW period 2 (choose one) 4-10pm	Reading summary (click on topics to the left for details): Procedures Video 1, Skim Procedures readings 1-2.
Wednesday 21 October	Lecture: Exam 1 HW period 3 (choose one) 4-10pm		Lab: lab Procedures, Call Stack
Friday 23 October	Lecture: topic x86 Procedures, Call Stack Lecture: topic Representing Data Structures	Reading summary (click on topics to the left for details): (Recommended) x86 Procedures video 6. Reading summary (click on topics to the left for details): Data Structure reading 1.
Date	Lecture	Reading summary (click on topics to the left for details)	Lab	Work
Monday 26 October				code Due: Commands code Assign: x86
Tuesday 27 October	Lecture: Tanner conference
Wednesday 28 October		Reading summary (click on topics to the left for details): (Recommended) x86 Procedures video 6.	Lab: lab x86 Structures and Programming
Friday 30 October	Lecture: topic Buffer Overflows	Reading summary (click on topics to the left for details): Data Structure videos 3-4. Buffer Overflows reading 1.
Date	Lecture	Reading summary (click on topics to the left for details)	Lab	Work
Tuesday 3 November	Lecture: topic Buffer Overflows	Reading summary (click on topics to the left for details): Review Buffer Overflows reading 1 as needed.
Wednesday 4 November			Lab: lab Buffer Overflow	code Due: x86 code Assign: Buffer
Friday 6 November	Lecture: topic Process Model	Reading summary (click on topics to the left for details): Process reading 1: CSAPP 1.7, 8.2 - 8.4.
Date	Lecture	Reading summary (click on topics to the left for details)	Lab	Work
Tuesday 10 November	Lecture: topic Shells, Signals Lecture: topic Threads	Reading summary (click on topics to the left for details): Review Process reading 1 as needed.
Wednesday 11 November			Lab: lab Processes
Friday 13 November	Lecture: topic Memory Allocation	Reading summary (click on topics to the left for details): Skim readings 1-3.		code Due: Buffer code Assign: Concurrency
Abstractions for Practical Systems
Date	Lecture	Reading summary (click on topics to the left for details)	Lab	Work
Tuesday 17 November	Lecture: topic Memory Allocation	Reading summary (click on topics to the left for details): Readings 1-3.
Wednesday 18 November			Lab: lab Malloc	code Assign: Malloc
Friday 20 November	Lecture: topic Memory Allocation	Reading summary (click on topics to the left for details): Review readings 1-3
Date	Lecture	Reading summary (click on topics to the left for details)	Lab	Work
Monday 23 November				code Due: Concurrency Info: ISA Exam
Tuesday 24 November	Lecture: topic Memory Hierarchy, Cache
Wednesday 25 November			Lab: Thanksgiving breakn
Thursday 26 November			Lab: Thanksgiving break
Friday 27 November			Lab: Thanksgiving break
Date	Lecture	Reading summary (click on topics to the left for details)	Lab	Work
Tuesday 1 December	Lecture: topic Virtual Memory		Lab: In-lab assessment for Tue lab section	Inclass: ISA Exam
Wednesday 2 December			Lab: In-lab assessment for Tue lab section	Inclass: ISA Exam
Friday 4 December	Lecture: Practice problems for ISA exam			Info: ISA Exam code Checkpoint: Malloc
Date	Lecture	Reading summary (click on topics to the left for details)	Lab	Work
Tuesday 8 December	Lecture: topic Beyond 240
Wednesday 9 December			Lab: lab Malloc
Date	Lecture	Reading summary (click on topics to the left for details)	Lab	Work
Sunday 13 December				code Due: Malloc
Wednesday 16 December
Thursday 17 December	Lecture: (11:59pm) Last day to submit CS240 work

Foundations of Computer Systems

Calendar