eMS Method of Operation and Program
Organization This section contains the following information: • Initialization of the CftS Virtual ftachine Environment • processing and Executing CftS Files • Handling I/O Operations • Simulating Non-CMS Operating Environments • Performing Miscellaneous CMS Functions
The CMS description is in tvo parts. The first part contains figures
showing the functional organization of CftS. The second part contains
general information about the internal structure of CftS prograas and
their interaction with one another. CMS program organization is in tvo figures. Figure 8 is an overview
of the functional areas of eMS. Each block is nuabered and corresponds
to a more detailed outline of the function found in Figure 9. CftS Method of Operation and Program Organization 2-51

CD ,..--------, Process
Commands
that Manipulate the File System Process Ann Execute CMS Files Initialize the CMS Virtual Machine
Environment
Perform Miscellaneous CMS Functions
Manage
the CMS File System Simulate Non-CMS Operating
Environments Handle I/O Operations
Interruptions
Manage CMS Storage Figure 8. An Overview of the Functional Areas of C!S 2-52 IBft VK/370 System Logic and Program Determination--Voluae 2