DOS Operating System

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DOS Operating System has a total of 4 components: File system, Process Manager, Memory Manager and Network Manager. There is a fifth component, IO Manager, but since DOS doesn't have a user interface it does not contain this component.


1. File system
The file system for DOS is a FAT16 system, its able to keep track of where the files were on your computer. Although, all files on the system are limited to eight characters and a three letter extension. The MS-DOS filesystem also has a limit of approximately 2.1 Gigabytes.

2. Process Manager 
DOS is a FIFO processor (First In First Out) meaning it can only do one task at a time.

3. Memory Manager 
DOS comes with the standard extended memory manager called HIMEM.SYS The amount of memory present (and available) in a system can be found by running the following command: "mem" (or "mem /c |more" for more detailed information).

4. Network Manager 
In DOS, you would need to use some commands to connect to the network. You can update and fix the network with some commands. 
To see those commands click here



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