Introduction to programming
- 1. Introduction to Programming What is programming ? Programming - deals with the study of computer language. What is a Visual Basic ? Visual Basic ( Vb )– is a tool created by Microsoft to build a computer application in a user-friendly environment that supports Graphical User Interface GUI - Graphical User Interface Flowchart – A graphical representation of step by step instructions to solve a problem. Algorithm – A set of step by step instructions to solve a problem. Operator – An engine used to perform logical and mathematical operations. Variable – A memory / storage / container Loop – An action that repeatedly and continuously perform until a certain condition is done. Operators: 1.) Arithmetic operator + Addition - Subtraction * Multiplication / Division 2.) Relational Operator > greater than < lessthan >= greater than or equal to <= greater than or equal to === or == or = equal to < > or != not equal to 3.) Logical Operators || OR && AND
- 2. Flowchart Algorithm Variables preparation Ex. 1.) X = 5 y= 6 Z= x + y Collect materials Variable : X,Y Ex. 2.) X = 5 y=6 Z= x + y Z = X+Y Print……? Is ….? Less than 100? Yes or no Is Z less than 100? YES or NO If true, then re- short The operation Else if false If true, re-start the operation Else if false Display result Display…..? Then end operation Then End the operation START INPUT PROCESS CONDITION OUTPUT END