It is user interface
Ex Button, Checkbox, Label
Visual Basic Controls work on Visual Studio for Visual Basic and Applications that made by Visual Basic.
answer
deleting control
see
the control appear on the form
That would depend on wich control you are talking about. But every control has to have the property: "(Name)", and most of them have "Disabled" and "visible".
Visual Basic was started in 1991.
Microsoft is the developer of visual basic
Visual Basic was created by a team at Microsoft.
The programming language: Visual Basic is a BASIC-like (or BASIC-derived) language, Visual C is... well C.
No.
Microsoft is the developer of Visual Basic.