Title: Classes
Date: 2014-02-15
Author: David Evans
Summary: Videos

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[**Class 1: What is an Operating System?**](|filename|../classes/class1/class1.md)  
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[What is an Operating System?](http://www.youtube.com/watch?v=ycpSnZN-c_Q&list=PLvpsxlEF9cP2hCgWeSjVLIG-2QrMzq6Ma&index=1) (9:16)  
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[Does it have an Operating System?](http://www.youtube.com/watch?v=4YFjWAUtkqo&list=PLvpsxlEF9cP2hCgWeSjVLIG-2QrMzq6Ma&index=2) (12:49)  
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[Operating Systems: Course Overview](http://www.youtube.com/watch?v=cJbIXG50RCE&list=PLvpsxlEF9cP2hCgWeSjVLIG-2QrMzq6Ma&index=3) (15:34)  
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[Introducing Rust](http://www.youtube.com/watch?v=oD1_3iL12mU&list=PLvpsxlEF9cP2hCgWeSjVLIG-2QrMzq6Ma&index=4) (18:27) 
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[**Class 3: Zero to a Billion in 4.86 Years**](|filename|../classes/class3/class3.md)  
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[Zero to a Billion in 4.86 Years](http://www.youtube.com/watch?v=Vi2q9zUHSKc&list=PLvpsxlEF9cP2OYcIJXbA-JcOq8aC5ThHd&index=1) (3:22)   
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[From Chimps to Universal Machines](http://www.youtube.com/watch?v=do_LfNgiIGY&list=PLvpsxlEF9cP2OYcIJXbA-JcOq8aC5ThHd&index=2) (4:56)  
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[The Race to Practical Machines](http://www.youtube.com/watch?v=M5EbgsvYWAc&list=PLvpsxlEF9cP2OYcIJXbA-JcOq8aC5ThHd&index=3) (9:20)  
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[The First Real Operating Systems](http://www.youtube.com/watch?v=yk0c3yqR4k0&list=PLvpsxlEF9cP2OYcIJXbA-JcOq8aC5ThHd&index=4) (11:27)  
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[From Multics to Android](http://www.youtube.com/watch?v=MKvKre0b2GM&list=PLvpsxlEF9cP2OYcIJXbA-JcOq8aC5ThHd&index=5) (15:43)
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[**Class 4: Once Upon a Process**](|filename|../classes/class4/class4.md): [Videos](http://www.youtube.com/playlist?list=PLvpsxlEF9cP0wwqwprCmebP6S6OrLhU6o)  
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[Once Upon a Process](http://www.youtube.com/watch?v=0PUVy92eCnI&list=PLvpsxlEF9cP0wwqwprCmebP6S6OrLhU6o&index=1) (7:32)  
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[Rust Expressions and Higher-Order Functions](http://www.youtube.com/watch?v=lDXLmtDfPDE&list=PLvpsxlEF9cP0wwqwprCmebP6S6OrLhU6o&index=2) (17:24)  
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[How to Share a Processor - Preemptive Scheduling](http://www.youtube.com/watch?v=1hDCouuvers&list=PLvpsxlEF9cP0wwqwprCmebP6S6OrLhU6o&index=3) (20:49)  
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[**Class 5: Gash Has No Privileges (Shells and Processes)**](|filename|../classes/class5/class5.md)  
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[Privileged Instructions](http://www.youtube.com/watch?v=Lv1yUAqNwwU&list=PLvpsxlEF9cP24xi9Y5SDmlZiy-tv9VdWX&index=1) (15:05)  
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[Virtualizing Machines](http://www.youtube.com/watch?v=vRNTEtIGGmg&list=PLvpsxlEF9cP24xi9Y5SDmlZiy-tv9VdWX&index=2) (5:13)  
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[How Many Processes Should a Web Browser Create?](http://www.youtube.com/watch?v=6UL9Y46V1xk&list=PLvpsxlEF9cP24xi9Y5SDmlZiy-tv9VdWX&index=3) (9:10)  
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[Good Auld Shell (gash) Demo](http://www.youtube.com/watch?v=GtPWXuBMJYA&list=PLvpsxlEF9cP24xi9Y5SDmlZiy-tv9VdWX&index=4) (16:54)  
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[**Class 6: Making a Process (Virtualizing Memory)**](|filename|../classes/class6/class6.md)  
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[PS2 Tips: Background Processes, Interrupts](http://www.youtube.com/watch?v=zhctErV4LSo&list=PLvpsxlEF9cP3uR3DaskKygs0ToPGQktak&index=1) (17:45)  
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[How to Make a Process](http://www.youtube.com/watch?v=JR3MfAqFvWo&list=PLvpsxlEF9cP3uR3DaskKygs0ToPGQktak&index=2) (7:44)  
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[Virtual Memory in MULTICS](http://www.youtube.com/watch?v=cwv9dvZuPzc&list=PLvpsxlEF9cP3uR3DaskKygs0ToPGQktak&index=3) (4:23)  
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[Virtual Memory in the x86](http://www.youtube.com/watch?v=jkGZDb3100Q&list=PLvpsxlEF9cP3uR3DaskKygs0ToPGQktak&index=4) (16:27)  
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[**Class 7: Double Faults  (Multi-Level Pages, Page Faults and Segmentation Faults)**](|filename|../classes/class7/class7.md)  
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[Modern Page Tables: Multi-Level Paging](http://www.youtube.com/watch?v=pCgw4Pe-5jo&list=PLvpsxlEF9cP0jykL_SWvKctreVfprFE1L&index=1) (17:23)  
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[Segmentation Faults and Page Faults](http://www.youtube.com/watch?v=fPLmJv2rFok&list=PLvpsxlEF9cP0jykL_SWvKctreVfprFE1L&index=2) (5:28)  
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[More on Segmentation Faults](http://www.youtube.com/watch?v=xPw--i4NcNI&list=PLvpsxlEF9cP0jykL_SWvKctreVfprFE1L&index=3) (4:37)  
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[Processes, Threads, and Tasks](http://www.youtube.com/watch?v=RZGjMKysP-0&list=PLvpsxlEF9cP0jykL_SWvKctreVfprFE1L&index=4) (10:43)
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[**Class 8: Memory Management**](|filename|../classes/class8/class8.md)  
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[Exam Review: gash in Ring 3, sudo](http://www.youtube.com/watch?v=a9XTzWuR2PI&feature=share&list=PLvpsxlEF9cP294pMPOE0WT9oYnV8xX0f7) (5:48)  
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[Concurrent Collatz Challenge](http://www.youtube.com/watch?v=jtKpIcZW-nc&feature=share&list=PLvpsxlEF9cP294pMPOE0WT9oYnV8xX0f7&index=1) (5:48)  
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[Memory Management in C](http://www.youtube.com/watch?v=_AGdMz08T1s&feature=share&list=PLvpsxlEF9cP294pMPOE0WT9oYnV8xX0f7&index=2) (5:35)  
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[fingerd Fail! (The Morris Worm and How to Defeat It)](http://www.youtube.com/watch?v=eRwXb2OYEHY&feature=share&list=PLvpsxlEF9cP294pMPOE0WT9oYnV8xX0f7&index=3) (25:40)
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[**Class 9: Pointers in Rust**](|filename|../classes/class9/class9.md)  
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[Automatic Memory Management](http://www.youtube.com/watch?v=3tSLcJBVL8w&list=PLvpsxlEF9cP1gddrE6oNTpOIr0SBY-rpa&feature=share) (17:15)  
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[Type Safety and Garbage Collection](http://www.youtube.com/watch?v=qz1yD-gH82M&feature=share&list=PLvpsxlEF9cP1gddrE6oNTpOIr0SBY-rpa&index=1) (6:17)  
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[Pointers in Rust](http://www.youtube.com/watch?v=DnRFFUs3xbc&feature=share&list=PLvpsxlEF9cP1gddrE6oNTpOIr0SBY-rpa&index=2) (16:03)
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[**Class 10: SSL, Sharing, Scheduling**](|filename|../classes/class10/class10.md)  
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[goto fail; (Apple's SSL Bug)](http://www.youtube.com/watch?v=cNJX34-yOW8&feature=share&list=PLvpsxlEF9cP2qc6W0tZZyy7eXsWIIpZdm) (19:24)  
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[Safe Sharing across Tasks](http://www.youtube.com/watch?v=MRbY4Ykd_yA&feature=share&list=PLvpsxlEF9cP2qc6W0tZZyy7eXsWIIpZdm&index=1) (15:43)  
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[Introduction to Scheduling](http://www.youtube.com/watch?v=F4LUFdWg2bQ&feature=share&list=PLvpsxlEF9cP2qc6W0tZZyy7eXsWIIpZdm&index=2) (3:51)  
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[**Class 11: Smarter Scheduling**](|filename|../classes/class11/class11.md)  
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[Scheduling Recap, Real-Time Systems](http://www.youtube.com/watch?v=w3XjhJ7Ex1Y&feature=share&list=PLvpsxlEF9cP2mphWRTf0K0-0MJGpoq1cZ) (10:07)  
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[First Come, First Serve; Round-Robin](http://www.youtube.com/watch?v=hMGZx3N1czs&feature=share&list=PLvpsxlEF9cP2mphWRTf0K0-0MJGpoq1cZ&index=1) (8:59)  
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[Priorities](http://www.youtube.com/watch?v=1GiUVZOZdts&feature=share&list=PLvpsxlEF9cP2mphWRTf0K0-0MJGpoq1cZ&index=2) (3:37)  
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[Preemptive Priority Scheduling](http://www.youtube.com/watch?v=_l1FK8CimRk&list=PLvpsxlEF9cP2mphWRTf0K0-0MJGpoq1cZ&feature=share&index=3) (8:04)  
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[Lottery and Stride Scheduling](http://www.youtube.com/watch?v=7q2H-Gag4nI&list=PLvpsxlEF9cP2mphWRTf0K0-0MJGpoq1cZ&feature=share&index=4) (9:30)
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[**Class 12: Scheduling in Linux and Web Servers**](|filename|../classes/class12/class12.md)  
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[Glimpse at the Leaderboard](http://www.youtube.com/watch?v=HKrVC7YK8pM&list=PLvpsxlEF9cP2vrwRWxzq2e0PXi0t_SQ67&feature=share) (2:15)  
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[Scheduling in Linux (from 2.2 to OS X Mavericks)](http://www.youtube.com/watch?v=oKKCG4MufwI&feature=share&list=PLvpsxlEF9cP2vrwRWxzq2e0PXi0t_SQ67&index=1) (18:26)  
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[Scheduling Web Services](http://www.youtube.com/watch?v=TevcaQOBx1Y&feature=share&list=PLvpsxlEF9cP2vrwRWxzq2e0PXi0t_SQ67&index=2) (27:05)  
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[**Class 13: The Internet**](|filename|../classes/class13/class13.md)  
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[Course Update: Projects](http://www.youtube.com/watch?v=hELYWgAsYH0&feature=share&list=PLvpsxlEF9cP3xjzQ8Qo2JI3LTCkwA4f09) (3:51)  
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[Benchmarking for Customers](http://www.youtube.com/watch?v=SvWwozIOMbI&feature=share&list=PLvpsxlEF9cP3xjzQ8Qo2JI3LTCkwA4f09&index=1) (9:01)  
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[Latency](http://www.youtube.com/watch?v=Qw0ZNFMYfvs&feature=share&list=PLvpsxlEF9cP3xjzQ8Qo2JI3LTCkwA4f09&index=2) (7:32)  
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[Tracing Routes](http://www.youtube.com/watch?v=fc8Zt_rHnAA&feature=share&list=PLvpsxlEF9cP3xjzQ8Qo2JI3LTCkwA4f09&index=3) (15:27)  
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[Bandwidth](http://www.youtube.com/watch?v=j5SYaURMhHI&list=PLvpsxlEF9cP3xjzQ8Qo2JI3LTCkwA4f09&feature=share&index=4) (4:59)  
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[Packet Switching and Internetworking](http://www.youtube.com/watch?v=j5SYaURMhHI&list=PLvpsxlEF9cP3xjzQ8Qo2JI3LTCkwA4f09&feature=share&index=5) (4:58)  
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[**Class 14: Entering Ring Naught**](|filename|../classes/class14/class14.md)  
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[Course Update, 2013 Turing Award!](http://www.youtube.com/watch?v=ZAQuudeBImk&list=PLvpsxlEF9cP0SCptCL3bNR8M2lZrQRi0G&feature=share) (5:21)  
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[Memory Isolation in Software and Hardware](http://www.youtube.com/watch?v=kv0P1wm2_kY&feature=share&list=PLvpsxlEF9cP0SCptCL3bNR8M2lZrQRi0G&index=1) (13:59)  
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[Entering the Kernel!](http://www.youtube.com/watch?v=2iXcqFhcIbA&list=PLvpsxlEF9cP0SCptCL3bNR8M2lZrQRi0G&feature=share&index=2) (11:13)  
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[Introducing IronKernel](http://www.youtube.com/watch?v=B8OBuY4cSBk&feature=share&list=PLvpsxlEF9cP0SCptCL3bNR8M2lZrQRi0G&index=3) (6:49)  
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[IronKernel Demo](http://www.youtube.com/watch?v=PQi7nnj1LKY&feature=share&list=PLvpsxlEF9cP0SCptCL3bNR8M2lZrQRi0G&index=4) (14:54)  
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[**Class 15: IronKernel Developers**](|filename|../classes/class15/class15.md)  
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[IronKernel Developers](http://www.youtube.com/watch?v=f67k2vCjQ0Y&list=PLvpsxlEF9cP2c_L36XRj7eiLNgQwwg8H-&feature=share) (19:36)  
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&nbsp;&nbsp;&nbsp;Alex Lamana, Zeming Lin, Wil Thomason
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[**Class 16: Storage**](|filename|../classes/class16/class16.md)  
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[Storage](http://www.youtube.com/watch?v=_I6Kmw3KpUY&feature=share&list=PLvpsxlEF9cP3sM_Zz1jiQVE64ekJzycjX) (9:42)  
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[SRAM and DRAM](http://www.youtube.com/watch?v=SO4i3rKkLIE&list=PLvpsxlEF9cP3sM_Zz1jiQVE64ekJzycjX&feature=share&index=1) (8:19)  
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[Disk Drives](http://www.youtube.com/watch?v=C676kv-NMIc&feature=share&list=PLvpsxlEF9cP3sM_Zz1jiQVE64ekJzycjX&index=2) (10:13)  
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[Storage Abstractions (File Systems)](http://www.youtube.com/watch?v=OFQxuZMZsJU&list=PLvpsxlEF9cP3sM_Zz1jiQVE64ekJzycjX&feature=share&index=3) (17:18)  
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[**Class 17: Flash!**](|filename|../classes/class17/class17.md)  
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[Making a File](http://www.youtube.com/watch?v=QRF7VzpPqXA&feature=share&list=PLvpsxlEF9cP0ZrgWIm5RPoCSuwoUAaT9f) (5:55)  
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[Requirements for Modern File Systems](http://www.youtube.com/watch?v=p-d55Yn5ROY&feature=share&list=PLvpsxlEF9cP0ZrgWIm5RPoCSuwoUAaT9f&index=1) (4:52)  
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[ZFS: Integrity Checking](http://www.youtube.com/watch?v=Js535LqapFE&list=PLvpsxlEF9cP0ZrgWIm5RPoCSuwoUAaT9f&feature=share&index=2) (6:31)  
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[RAID: Redundant Arrays of Inexpensive Disks](http://www.youtube.com/watch?v=Ugbua8pTS6c&list=PLvpsxlEF9cP0ZrgWIm5RPoCSuwoUAaT9f&feature=share&index=3) (5:36)  
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[Adaptive Replacement Cache](http://www.youtube.com/watch?v=_XDHPhdQHMQ&list=PLvpsxlEF9cP0ZrgWIm5RPoCSuwoUAaT9f&feature=share&index=4) (8:14)  
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[Flash Memory](http://www.youtube.com/watch?v=qXjuVxlVyfc&feature=share&list=PLvpsxlEF9cP0ZrgWIm5RPoCSuwoUAaT9f&index=5) (5:26)  
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[Log-Structured File Systems](http://www.youtube.com/watch?v=KTCkW_6zz2k&feature=share&list=PLvpsxlEF9cP0ZrgWIm5RPoCSuwoUAaT9f&index=6) (15:04)  
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[**Class 18: System Calls**](|filename|../classes/class18/class18.md)  
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[Minimizing Magic](http://www.youtube.com/watch?v=yXF_zp9R6Vw&list=PLvpsxlEF9cP1Gt9pVrGznW_PW81rtN-dA&feature=share) (3:26)  
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[Access Control](http://www.youtube.com/watch?v=ceU8JvQ5lcA&list=PLvpsxlEF9cP1Gt9pVrGznW_PW81rtN-dA&feature=share&index=1) (16:48)  
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[setuid in Apache](http://www.youtube.com/watch?v=SH5euOg18Bw&feature=share&list=PLvpsxlEF9cP1Gt9pVrGznW_PW81rtN-dA&index=2) (13:03)  
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[Implementing System Calls](http://www.youtube.com/watch?v=MjgvV7LulsI&list=PLvpsxlEF9cP1Gt9pVrGznW_PW81rtN-dA&feature=share&index=3) (17:30)  
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[**Class 19: Synchronization**](|filename|../classes/class19/class19.md)  
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[PS4 Postmortem](http://www.youtube.com/watch?v=4qpyGyEvNW0&feature=share&list=PLvpsxlEF9cP3wPP3649CcsB8j82PFab-n) (3:56)  
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[SSL Heartbleed](http://www.youtube.com/watch?v=iA6AYtmJ4UI&list=PLvpsxlEF9cP3wPP3649CcsB8j82PFab-n&feature=share&index=1) (13:36)  
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[Synchronization](http://www.youtube.com/watch?v=Tte2D4iKjbA&feature=share&list=PLvpsxlEF9cP3wPP3649CcsB8j82PFab-n&index=2) (11:48)
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[**Class 20: Mutual Exclusion**](|filename|../classes/class20/class20.md)  
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[Projects/Hackathon Update](http://www.youtube.com/watch?v=OPTkjLXbmf0&feature=share&list=PLvpsxlEF9cP07YyhdvphZxLSjluZ9h8OY) (6:14)  
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[Mutual Exclusion Non-Solutions](http://www.youtube.com/watch?v=kzQik4bQeh0&feature=share&list=PLvpsxlEF9cP07YyhdvphZxLSjluZ9h8OY&index=1) (15:15)  
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[Hardware-Assisted Mutual Exclusion](http://www.youtube.com/watch?v=FkRZpg7jTQU&list=PLvpsxlEF9cP07YyhdvphZxLSjluZ9h8OY&feature=share&index=2) (15:16)  
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[Dijkstra's Solution](http://www.youtube.com/watch?v=nNW9KhYnF6c&list=PLvpsxlEF9cP07YyhdvphZxLSjluZ9h8OY&feature=share&index=3) (7:14)  
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[**Class 21: Bakers and Philosophers**](|filename|../classes/class21/class21.md)  
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[**Class 22: Microkernels and Beyond**](|filename|../classes/class22/class22.md)
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[What Should Be in the Kernel?](http://www.youtube.com/watch?v=sxgYPSsIA74&list=PLvpsxlEF9cP0JPdl3GjbykbX0uhMUWW9K&feature=share) (7:17)  
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[Microkernels](http://www.youtube.com/watch?v=UMsscWnM67g&feature=share&list=PLvpsxlEF9cP0JPdl3GjbykbX0uhMUWW9K&index=1) (18:20)  
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[L4 and Fast Interprocess Communication](http://www.youtube.com/watch?v=mRr1lCJse_I&feature=share&list=PLvpsxlEF9cP0JPdl3GjbykbX0uhMUWW9K&index=2) (13:35)  
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[Exokernels](http://www.youtube.com/watch?v=QgIeBpyS5-4&feature=share&list=PLvpsxlEF9cP0JPdl3GjbykbX0uhMUWW9K&index=3) (6:04)
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[**Class 23: Invent the Future!**](|filename|../classes/class23/class23.md)
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[Making
Predictions](http://www.youtube.com/watch?v=Bus_5D4zdJ0&list=PLvpsxlEF9cP2FmhLM9kozCaI4d8v6bMiM&feature=share)
(7:36)</div><div class="hanging">
[Sending Faxes from the
Beach](http://www.youtube.com/watch?v=7D106VDzdMQ&feature=share&list=PLvpsxlEF9cP2FmhLM9kozCaI4d8v6bMiM&index=1)
(12:31)</div><div class="hanging">
[Pace of
Progress](http://www.youtube.com/watch?v=Uwx6l75XXrQ&list=PLvpsxlEF9cP2FmhLM9kozCaI4d8v6bMiM&feature=share&index=2)
(8:03)</div><div class="hanging">
[Endless Golden
Ages](http://www.youtube.com/watch?v=j9XZSgDAtSQ&list=PLvpsxlEF9cP2FmhLM9kozCaI4d8v6bMiM&feature=share&index=3)
(20:12)  
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