What are the advantages and disadvantages of DOS?

Advantages:1.
will run on a much smaller system.
(ENTIRE OS can be placed on a SINGLE MODERN ROM chip!)2.
gives you more "direct" control of the processes.3.
Because of smaller size will "boot" much faster than ANY windows version.4.
Is easier to write "special purpose" programs for, so long as they don't require "fancy" graphics.5.
Allows you to make use of the "old, slow" system you hid in the closet when you bought the "new" one.
DOS is very lightweight and it allows direct access to most hardware.
It does not have the overhead of a multitasking operating system.
Disadvantages:1.
Very few "new" programs available, therefore you need to be able to write programs in many cases.2.
Not nearly as fancy in the graphics department.3.
Not compatible with current "browsers" and most internet.Its a Single User OS (One User can Work at a time)4.Its a Single Tasking OS (One application can run at a time)5.It does not supports Graphics6.It does not supports Networking7.We can only make2GB of Maximum partition as it supports only FAT16 NOTE: EVEN WindowsXP uses some type of DOS to access the computer during start-up, and install, as does Unix, Linux and almost ALL OS's.
Remember DOS stands for Disk Operating System!!

Advantages: DOS has many advantages. The advantages will be the reasons for learning DOS. DOS is the most popular microcomputer operating system for IBM computers and compatibles ever sold worldwide. It runs thousands of applications and is easy to use.

DOS single user and single tasking. its character base interface therefore cannot support graphics. Its cannot use easily as Graphics user interface.

Thanks for the help about Dos