Виртуал хотира

xodisani kutish, signal xodisalari;

bo’sh xotirani ajratish


Fayllarni boshqarish uchun

• 
  Fayl yaratish, faylni o’chirish;
  
• 
  Ochish, yopish;
  
• 
  O’qish, yozish, o’zgartirish;
  
• 
  Get file attributes, set file attributes;
  

Qurilmalarni boshqarish uchun

• 
  Request device, release device;
  
• 
  O’qish, yozish, o’zgartrish;
  
• 
  Get device attributes, set device attributes;
  
• 
  Logically attach or detach devices
  

Tizimli ma’lumotlar uchun

• 
  get time or date, set time or date;
  
• 
  get system data, set system data;
  
• 
  get process, file, or device attributes;
  

set process, file, or device attributes