Operating System

Operating System

1. Terms

   • Multi-user: Two or more user have individual accounts
   • Multitasking: Multiple application at the same time
   • Multiprocessing: Two or more CPUs
   • Multithreading: Program broken up and loaded as needed

2. Function

   • Control Hardware access
     • Use program called device driver to access and communicate with hardware
   • Manage files and folders
     • Application Programming Interface (API)
       • Open Graphics Library (OpenGL)
       • DirectX
       • Windows API
       • Java APIs
   • Provide a user interface
     • Command-line interface (CLI)
     • Graphical User Interface (GUI)
   • Manage applications
     • File and Folder Management
   • Architecture
     • x86 (All windows system)
     • x64 (Everything but 7 starter, XP Home, Media Center Edition

3. Types

4. OS Application

   • Microsoft Compatibility Center (Win 7 and up)
   • Hardware Compatibility List (HCL) (Win XP)
   • Upgrade Advisor
   • Data Migration
     • User State Migration Tool (USMT)
     • Windows Easy Transfer
   • Windows Update
   • Device Manager