The M OS; M stands for Mobile (or Muang)

===

• Program: executable jobs
• Application (app): Visible Program. It has an User Interface (UI).

• Each app runs on a different process.
  

• Event: An incident
• Signal: It is sent to Administrator, then broadcast.
• Administrator: It checks if the signal was valid
• Receive: An app gets signal then handle the proper action
• Splash
  • Android: Starting Window

1. User: Screen and touchscreen (and a few physical buttons)
2. App Developer: Defines UI components, background logic, requests to the system, and handling of system requests (interrupts)
3. Framework: Handles requests from apps (e.g., drawing windows), listens for system operation requests, and system interrupts
4. System: Writes and delivers sensor values, creates processes, etc.

• Windowing

• Input

• Graphics

• Audio

• Process