Operating Systems

Operating Systems

1. Processes

   • PCB
   • States
     • Running
     • Ready
     • New
     • Blocked
     • Exit
   • Kernel/Process implementation

2. Memory

   • Inboard Memory
     • Registers
     • Caches
     • Main Memory
   • Outboard Storage
     • CD, DVD, Disks
   • Off-line Storage
     • Magnetic Tape
   • Adressing
     • Physical Adress
     • Relative Adress
     • Logical/Virtual Adress
     • Adress Space
     • Partitioning
       • Fixed Partitioning
         • Internal Fragmentation
       • Dynamic Patitioning
         • External Fragmentation
   • Implementation Algorithms
     • First-fit
     • Next-fit
     • Buddy System
   • Paging

3. Scheduling

   • Long-term Scheduling
   • Medium-term Scheduling
   • Short-term Scheduling
   • I/O Scheduling
   • Decision Modes
     • Preemptive
     • Non-preemptive
       • Algorithms
         • FCFS
         • SPN
         • HRRN
         • SRT
         • Round Robin
         • Feedback
   • Realtime Scheduling

4. Booting

   • Multistage
   • Bootloader
     • MBR
   • Daemons

5. Security

   • Safety
   • Confidentiality, Integrety, Availability
   • Attackers Motivation
     • Finances
     • Politics
     • Fun
   • Attackers
     • Passive
     • Active
   • KISS
   • Attacks
     • Machine
       • Overflows
       • Backdoors
       • Logic Bombs
     • Human
       • Spearfishing
       • Social Engineering
     • Hybrid
       • Click jacking
   • Malware
     • Virus
       • Polymorphic Virus
       • Bootvirus
     • Worm
     • Bot
     • Trojanhorse
     • Rootkit Technics