Introduction - Introduction, Limitations of computers, Fundamental uses of computers, Types of Computers, Generations of Computers. Personal Computer - Introduction, Components of personal computers, Evolution of PCs. Boolean Algebra and Logic Gates - Introduction, Boolean Algebra And Operator, OR Operator, NOT Operator, Basic Postulates of Boolean Algebra, Basic Logic Gates. Number System - Introduction, Digital and Analog Operations, Binary Data, Binary Number System, Decimal Number System, Octal Number System, Hexadecimal Number System, Coding System.