Selected Projects

Question 1

What’s a shell?

Answer 1

An interface (CLI or GUI) to interpret user commands and then execute them

Project 1: Implements “exit”, “pwd” (path), “cd”
- Displays prompt
- Reads user input
- Executes command
- Waits for completion and displays information message

Question 2

What’s a system call?

Answer 2

A request made by a program to access services or resources from the kernel.

Example service: File operations
Example resource: Hardware access

Kernel is the OS core responsible for managing hardware resources and providing essential services to programs.

Question 3

What is Concurrency?

Answer 3

The ability to handle multiple tasks simultaneously.

In the sense that their executions overlap, but may not necessarily start and end at the same time. (Keyword: overlap)

Example 1: Web server handling multiple requests simultaneously without delaying other requests. (More simply)

Example 2: A web server might run as a single process, handling different client requests concurrently. This process might create multiple threads, each responsible for processing a client request. (More concisely)

Project example: Implement a thread library that will allow applications to run different tasks simultaneously.

Question 4

Computer Networks

Answer 4

Studies the behavior of a network protocol by using statistics.

Statistics (distribution functions) allows us to analyze random processes such as data packet flow and make predictions based on probability, such as determining
- Number of dropped packets
- Number of packets in the queue
- Percentage of time the transmitter is busy

Question 5

Web Development (React)

Answer 5

Emphasis: React

• React is a JavaScript library for building interactive user interfaces
• In this project, it allows users to interact with the images by visually tagging images
• The images could also be automatically tagged by the cloud vision API
  
  • Interaction between React, cloud vision API, database