cdc_6500_survival_guide
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| cdc_6500_survival_guide [2021/03/15 23:28] – [File System] hc9 | cdc_6500_survival_guide [2021/03/15 23:28] – [File System] hc9 | ||
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| * **Primary file** | * **Primary file** | ||
| * The primary file is the temporary file, usually a program source file, that a user is viewing, modifying, or executing at a given time. Although a user session may simultaneously open multiple temporary files, a given user may have only one primary file at a time. | * The primary file is the temporary file, usually a program source file, that a user is viewing, modifying, or executing at a given time. Although a user session may simultaneously open multiple temporary files, a given user may have only one primary file at a time. | ||
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| * The currently selected primary file automatically determines the user's active subsystem. When a new indirect access file is saved as a permanent file for the first time, the file system records the active subsystem at the time. Then when the file is selected as primary sometime later, the system automatically activates the original subsystem. | * The currently selected primary file automatically determines the user's active subsystem. When a new indirect access file is saved as a permanent file for the first time, the file system records the active subsystem at the time. Then when the file is selected as primary sometime later, the system automatically activates the original subsystem. | ||
cdc_6500_survival_guide.txt · Last modified: 2022/12/05 06:33 by hc9