GEOS SDK TechDocs
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4 Directories and Paths
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5.1 DOS Files and GEOS Files
When data is not actually in a computer's memory, it needs to be grouped together in a manageable form. Most storage devices group data together into files . A file is a collection of information. It may be a program, either in machine language or in a higher-level language (as with batch files); or it may be data.
When an application is accessing a data file, it is said to have that file open . It may be open for read and write access, just for reading, or just for writing. If a file is open, it can not be moved or deleted (although it can be copied).
You will probably not have to read all of this section. Bytewise File Operations ( Bytewise File Operations ) is important only if you will be using DOS files or GEOS byte files. Most applications will work with GEOS Virtual Memory (VM) files.
GEOS SDK TechDocs
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| 4 Directories and Paths
| 5.1 DOS Files and GEOS Files