Free online courseOperating Systems and Systems Programming

Conteúdo do Curso

• Video class: CS162 Lecture 1: What is an Operating System?

  1h23m

• Exercise: Which of the following statements best describes the role of an operating system in modern computing environments?

• Video class: CS162 Lecture 2: Four Fundamental OS Concepts

  1h22m

• Exercise: What mechanism does an operating system use to ensure that user programs cannot directly perform hardware operations that should only be performed by the system kernel?

• Video class: CS162 Lecture 3: Abstractions 1: Threads and Processes

  1h27m

• Exercise: In the context of operating systems, what is the primary distinction between a thread and a process?

• Video class: CS162 Lecture 4: Abstractions 2: Files and I/O

  1h28m

• Exercise: In the context of system programming, what is the primary purpose of using the `dupe` system call?

• Video class: CS162 Lecture 5: Abstractions 3: IPC, Pipes and Sockets

  1h26m

• Exercise: What is the main purpose of the fork system call in Unix-like operating systems?

• Video class: CS162: Lecture 6: Synchronization 1: Concurrency and Mutual Exclusion

  1h30m

• Exercise: What is the primary reason for using locks in concurrent programming within operating systems?

• Video class: CS162: Lecture 6.5: Concurrency and Mutual Exclusion (Supplemental)

  0h47m

• Exercise: What is the primary purpose of using locks in the context of concurrent programming?

• Video class: CS162 Lecture 7: Synchronization 2: Semaphores (Con't), Lock Implementation, Atomic Instructions

  1h27m

• Exercise: In a multi-threaded environment within an operating system, which of the following synchronization techniques is used to ensure that a thread yields control and is no longer consuming CPU cycles while waiting for a resource to become available?

• Video class: CS162 Lecture 8: Synchronization 3: Atomic Instructions (Con't), Monitors, Readers/Writers

  1h28m

• Exercise: What is one major downside of using busy waiting in synchronization mechanisms?

• Video class: CS162 Lecture 9: Synchronization 4: Monitors and Readers/Writers (Con't), Process Structure

  1h29m

• Exercise: In an operating system, how can a monitor be described in terms of concurrency control?

• Video class: CS162 Lecture 10: Scheduling 1: Concepts and Classic Policies

  1h28m

• Exercise: In the context of CPU scheduling, what is a key advantage of using Round-Robin (RR) scheduling over First-Come, First-Served (FCFS) scheduling?

• Video class: CS162 Lecture 11: Scheduling 2: Case Studies, Real Time, and Forward Progress

  1h27m

• Exercise: What key aspect differentiates real-time scheduling from conventional scheduling in operating systems?

• Video class: CS162 Lecture 12: Scheduling 3: Deadlock

  1h26m

• Exercise: Which of the following is NOT a condition that must be present to potentially cause a deadlock in a system?

• Video class: CS162 Lecture 13: Memory 1: Address Translation and Virtual Memory

  1h28m

• Exercise: What is the main purpose of implementing the Banker's Algorithm in a system's operating system?

• Video class: CS162 Lecture 14: Memory 2: Virtual Memory (Con't), Caching and TLBs

  1h24m

• Exercise: What is a primary advantage of having multiple levels of page tables in virtual memory systems?

• Video class: CS162 Lecture 15: Memory 3: Caching and TLBs (Con't), Demand Paging

  1h27m

• Exercise: In a caching system, what is a major advantage of a two-level page table with a 32-bit address space and 4-byte page table entries?

• Video class: CS162 Lecture 16: Memory 4: Demand Paging Policies

  1h29m

• Exercise: In the context of page replacement algorithms, which of the following statements is true?

• Video class: CS162 Lecture 17: Demand Paging (Finished), General I/O, Storage Devices

  1h24m

• Exercise: In the context of virtual memory and page replacement algorithms, which of the following statements is true about the Clock algorithm?

• Video class: CS162 Lecture 18: General I/O (Con't), Storage Devices, Performance

  1h27m

• Exercise: In the context of storage devices, what is one key difference between 'solid state drives (SSDs)' and 'hard disk drives (HDDs)'?

• Video class: CS162 Lecture 19: Filesystems 1: Performance (Con't), Queueing Theory, Filesystem Design

  1h28m

• Exercise: In queueing theory, what effect does an increase in burstiness of arrivals have on the average queuing time in a system that has constant average arrival rate?