Computer System

• Computer Systems consist of two main areas. Computer Hardware and Computer Software.
• Computer Software refers to the programs that make computers perform useful tasks.
• Without software, computers are just piles of plastic and metal.
• Computer Software
• Operating System
• Application Programs
• Applications are programs that are written to perform a specific set of functions or tasks.
• Applications are run on top of a computer systems operating system.
• Structured Programming
• Until the 1990;s structured programming was the most popular method for developing computer programs.
• Structured programming was developed in the 1960;s in an attempt to overcome problems of software development efficiency.
• Structured programming designates breaking a problem into small pieces and then completing each piece of the problem in the logical order
• Divide and Conquer
• Object Oriented Programming
• Object oriented design and programming is concerned with breaking a problem into objects and then modelling each object with a program.
• Object oriented programming has many benefits including easier error checking and software re-use.