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OVERVIEW
XEROX DOCUPRINT 180 LPS PDL REFERENCE 1-3
LPS software components
The LPS operating system software (OSS), housed in the system
controller, runs both background and foreground processing. The
major programs or “tasks” run by the system controller are shown in
their hierarchical relationships in the list below. The OSS tasks are:
• Operating system executive (OSEXEC) task
• File control program (FCP)
• Operator communication subsystem (OCS)
• Diagnostic tasks
• System utilities
• Editor task
• Font editor task
• Input processing task
• File transfer (XFR)
• Report processing (RPT)
• Memory control program (MCP)
• Terminal ancillary control program (TACP)
• Ancillary IOT monitor program (AIM)
• Dynamic job descriptor (DJD) task
• Output processing task
• Print description language (PDL) processor
• Forms description language (FDL) processor
• Host interface processor (HIP) task.