Application areas and brief descriptions

• Linking and loading
• Virtual address space
  • Structure of virtual address space
  • Address conversion
  • Working with virtual memory
  • Common memory areas shared by several users (Memory pools)
  • Extended addressing with data spaces
• Task and program execution control
  • Starting, interrupting and terminating
  • User and job switches
  • Intertask communication (ITC)
  • (Task) serialization
  • Eventing
  • Contingency processes
  • STXIT procedure with contingency processing
  • Distributed Lock Manager (DLM)
    • Structure of a DLM lock
    • Functions of the DLM
    • Synchronous and asynchronous lock requests
    • Lock name
    • Cluster systems and single systems
• Requesting and accessing lists and tables
• Input/output
  • System files
  • Files and records
  • Data terminal communication
  • Messages
  • Encryption
• Debugging aids
• Checkpoints
• Accounting
• Communication (programs, users, system)
• Multiprocessor systems
• XS programming
• Job scheduler
• Macros generating only CSECTs or DSECTs