Operating systems

Operating systems

1. Services

   • User interface
     • Allows the user to interact with the operating system
   • Program Execution
     • Is the process for a program to run
   • I/O operations
     • Control all of our peripherals
   • File system manipulation
     • How the files are managed
   • Communication
     • Communication between the processes
   • Error detection
     • Detect errors to manage them correctly
   • Resourse allocation
     • How the resources of our computer are allocated and do this efficiently
   • Accounting
     • Wich user use how much and what kind of computer resources
   • Protecction and security
     • Its function is that the processes do not harm other processes or the operating system
     • Also should make a sure that the system is not accessed by outsiders

2. Components

   • Kernel
     • Process management
       • Create, to plan, terminate processes
     • Memory management
     • File management
       • With the use of directory manages all the files
     • I/O management
       • Management of device drivers
   • User space
     • Aplications
   • Others
     • Network management
       • managing computer networks
     • Secondary storage management
       • Storage allocation, free space management, disk scheduling
     • Security management
       • Used to protect the OS

3. Examples

   • Windows
   • MAC os
   • IOS
   • Android
   • Linux