The early days of computer programming were quite daunting for everyone. Different types and makes of desktops and PCs had their own unique features and architecture and computing power was expensive. This forced programmers to create specific machine instructions so that different machines could understand and interpret the code. This proved to be slow and tough for programmers. When Object Oriented Programming (OOP) languages came into existence, it helped programmers to solve many problems instead of spending time on writing machine instructions.