• Services Groupings
• Services Listing (Int 21h functions list)
• (LINK to Function Call Description)
• (LINK to Software.System.DOS.Listing)
• (LINK to Software.System.DeviceDriver.ServicesSummary)
• (Stack setup during function calls)
• Device Input and Output
  • Console
  • LPTx
  • COMx
  • Mouse
• File Operations
• Record Operations
• Directory Operations
• Disk Management
• Process Management
• Memory Management
• Time and Date
• Miscellaneous System Functions

See also:

• HTML version of the famous Ralf Brown Interrupt List
• Ralf Brown's Interrupt list

Interested: