A sequence of instructions is run. There is a starting point and a logical order to the instructions to be executed, until the end point is reached.

Procedural languages use program control constructs (If..Then, Loops, Subroutines and Functions).

A program that waits for events such as the clicking of the mouse or the press of a key on a keyboard.

When an event occurs, it is processed using a defined sequence of instructions called an event handler.

Useful for control programs where events such as readings from sensors are used to control devices.

Allow the programmer to manipulate objects visually on a form, setting their layout and properties. The underlying program code is automatically generated.

Used for creating Windows (GUI) applications.

A programming language where objects are defined.(See CG3) 

Objects have Properties and Methods.

Properties can be set initially or changed at run-time.

Methods are things that the object can do.

Special coding instructions are used to indicate style and layout of text and other elements.

Widely used for creating web pages on the Internet.