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Chapter 2 Operating System Structures (OS Services (User interface,…
Chapter 2
Operating System Structures
OS Services
User interface
Program execution
I/O operations
File-system manipulation
Communications
Error detection
Resource allocation
Protection and security
User and SO Interface
Command interpreters
Graphical user interfaces
System Calls
Provide an interface to the services made available by an operating system.
These calls are generally available as routines and low-level tasks
4.Types of System Calls
Process control
File management
Device management
Information maintenance
Communication
Protection
System Programs
File management
Programming-language support
Program loading and execution
Background services
OS Structure
Simple structure
Layered structure
Microkernels
Modules
7.OS Debugging
Failure analysis
Performance tuning
DTrace
Subtema 4
OS Generation
The system must be configured or generated for each specific computer site
System Boot
A small piece of code known as the bootstrap program located the kernel, loads it into main memory and starts its execution.
Daniela Porras Quiros
2015071255