Unit 3: Functionalities and resource management

Unit 3: Functionalities and resource management

1. File management

   • Organization
     • Tree structure
   • Partioning
     • Systems
       • GPT
         • + SPACE
         • PRIMARY PARTITIONS ONLY
         • NO LIMIT (WINDOWS 128)
         • NEW STANDARD
       • MBR
         • OBSOLETE
         • MAX. PARTITION: 2TB
         • BIOS POST READS ZERO SECTOR FOR BOTOONG OST
         • PARTITION
           • extended. max 1
           • primary: max 4
           • logical: unlimited
     • File system
       • FAT 32
         • max file size 4GB
         • max volume size 2TB
       • NFTs
         • Max volume size 16TB
         • Max file size: Volume size
       • EXT 3
         • Max volume size 32TB
         • Max file size 2TB
       • EXT 4
         • MAX FILE SIZE 16 TB
         • Max volume size 1 EB
     • LVM
       • The volume can be expanded if you connect more disks

2. I/O Management

   • DMA
   • IRQS
   • Improvements
     • Caching
     • Buffering
     • Spooling
   • Elements
     • Peripheral
     • Controller
     • Driver

3. Process management

   • Process is running
   • Scheduling
     • States
       • Running
       • Ready
       • New
       • Terminated
       • Blocked
     • Aging
       • For avoiding eternal block of process
     • Algorithms
       • Round robin
         • Expulsive
         • Quantum
       • Expulsive priorities
         • Priority
         • Expulsive
       • Non-expulsive priorities
         • Priority
         • Non-expulsive
       • SJF
         • Execution time
         • Non-expulsive
       • FIFO
         • First input/First output
         • Non-expulsive

4. Memory management

   • Fragmentación
     • INTERNAL
     • FIX. COMPACTION
     • EXTERNAL
   • Pagination
     • PAGE TABLES
     • PAGE FAULTS
     • PAGE FRAMES
   • Page replacement
     • FIFO
     • LRU
       • Less recently used