1. The History of Computer Programming Languages Introductory Programming Visual Basic

2. Low Level Language Machine language Binary (zeros and ones) Machine specific Typical command: 0 1 1 0 1 1 0 1

3. Assembly Language More “English-like” Still machine specific Uses hexadecimal Typical Command JMP &H180A

4. High Level Languages At first, specific functions –COBOL –FORTRAN General Purpose Languages –BASIC “Machine Independent” Typical command Print “Hello”

5. Structured Programming Break programs into smaller units Procedures Functions Local and Global Variables Parameters Pascal, C

6. Structured Program (Example) void PrintTwoIntegers (int N1, int N2) ( cout << “N1 = ” << N1 << “ N2 = ” << N2; )

7. Object-Oriented Programming (OOPS) we live in a world of objects computer programs should reflect the type of problems in the world objects should be "walled off" from rest of program (encapsulation ) objects have classes they belong to (inheritance)

8. The History of BASIC Kemeny & Kurtz The Hackers Bill Gates Quick Basic Visual Basic

9. OOPS Terminology what it is like (properties) what it does (methods, procedures, functions) communicating with objects- sending messages what it responds to (events)