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School of Computer Science & Engineering
University of New South Wales
 Advanced Operating Systems 
 COMP9242 2002/S2 

Single-Address-Space Operating Systems

SASOS characteristics:

• Unique addresses for all data items
  • threads always agree about the address of data
• Sharing by reference
  • simply pass pointer
• no marshalling or conversion of data formats required
  • on-disk format same as in-memory format