DOS is classic way of command that is first stairs step for development. The layout of modern programmings are updated but older have same with black and dark blue. Mostly the students of intermediate and bachelor will learn it if they choose computer as optional subject. They will learn how to calculate values through multiply, add and minus commands. Turbo C++ is one of legend coding app that makes it easier.
The interface is similar to windows 98 and me style but we need code. It has internal compiler to debug the code and implement the result. F1 key is always there to show some functions and their usage as well. Originally it i the property of Borland but unfortunately they have discontinue it. It was classic but it support several keyboard shortcuts to compile with your codes.
The wide support of functional keys will respond immediately to user commands. Thus there are useful set of tools which will compile user coding and debug your codes. New generation programming languages are most advanced in such ways to build web apps, cloud services and hosting server utilities. However, you will see first word of text is in red color that shows shortcut key support.
It can deal with supported files to edit and save projects easily. You can even search text to find errors that will come while missing colons at the end of each line. If you are amature developer, you will find it as reliable IDE floor. Therefore the alternatives were facing compatibility issues with modern OS. You will find it responsive in compiling, debugging and code searching.