When does implantation occur? If conception occurred, implantation (when the fertilized egg attaches to the uterine wall) typically happens seven to ten days after ovulation, but it can happen a few days earlier or later as well.
Object oriented programming is an attempt to structure imperative code. It makes models of the various concepts in the problem area and applies them. These models (objects) are given functionality (methods) that allow them to perform various actions, and each object can also hold information.
An object-oriented operating system and programming language developed at Xerox Corporation's Palo Alto Research Center. Smalltalk was the first object-oriented programming language (Simula was the very first).