OPERATING SYSTEMS

OPERATING SYSTEMS

1. Hardware

   • CPU, RAM, HDD,SSD,GPU
   • OS Role
   • User Input
   • Motherboard

2. Mobile Operating System

   • Android, iOS
   • Mobile Devices
   • Google Play, App Store)
   • Wireless Connectivity

3. Security Role of OS

   • Data Protection
   • Access Control
   • Firewall
   • Malware Defense
   • Encryption

4. Binary Language

   • Base-2 Language
   • Bits and Bytes
   • Text Encoding
   • Translation

5. Early Computers

   • Single-Tasking
   • Limited Memory
   • ENIAC, Colossus
   • Slow Processing
   • No GUI/CLI

6. Security Analyst

   • Firewalls
   • Common Threats
   • Security Tools
   • Role of OS in Security

7. Main Job of an OS

   • Resource Management
   • Hardware Management
   • Task Scheduling
   • Security Features

8. Multitasking

   • Simultaneous Tasks
   • Preemptive Multitasking
   • Better Efficiency
   • System Overload
   • Context Switching

9. Linux

   • Free and Open Source
   • Security Features
   • Customization
   • Server Operating System
   • Development Environment
   • Stability
   • Software Compatibility
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