Operating system

Operating system

1. User Interfaces

   • Form filling
   • Menu D
   • Graphical User Interface
   • Command line interface

2. File Management

   • Attributes
   • location
   • Size
   • Premissions

3. Input-Output

   • Peripherals
     • Character Devices
     • Block Devices
   • Direct Memory Access(DMA)
   • Device Drivers
   • Virtual Devices
   • Buffering
   • Plug and Play

4. Memory Management

   • Allocating Resources
   • Security
   • Multitasking

5. Kernel

   • Passes information between OS Components
   • Process management

6. Utility Programs

   • Disk partitioning tools
   • Disk Formatting tools
   • File Compression
   • Disk defragmentation
   • Virus checking
   • Backup
   • search
   • Task Scheduler