How is Dos used?

Every time when we type anything at the Dos prompt, and press enter, we are telling Dos to run a program. Also, it will first look to see if there is an internal command program which has that name, and if it does not find one, then it will look to see if there is a file on disk with that name. When we finds an external file with the extension. COM ( command), or EXE (executable), then the program is loaded and run. In this case Dos looses control of the computer until the program has ended.

how we write dos files named?

When we write dos files named we have to have 1 to 8 letter name, period, 3 letter extension eg:

How does Dos organise disks?

When dos work within a file, directory and disk drive structure. Also, this all program and data files are named, and grouped together in named diectories on disks.

What is Dos?

DOS is a "Disk Operating System". That means it is simply: "a System for Operating the Disks". We use Dos to organise data files, load and execute (run) program files, and control the input and output devices attached to the computer. There are other brands of DOS besides the most well known "MS-DOS", ie: PC-DOS, DR-DOS/OPENDOS. Generally speaking, they will all function in the same way, especially at the most simple level.