Lesson 13 B Introduction to Computers Syntax Programming

Lesson 13 B Introduction to Computers

Syntax Programming language rules home

Syntax Examples Provide information in a certain order and structure Use special symbols Use punctuation (sometimes) home

Three Programming Categories Based on Evolution Machine languages Assembly languages Higher-level languages home

Programming Language Generations Machine languages: first generation Assembly languages: second generation Higher-level languages: third generation (3 GLs) home

Fading Third-Generation Languages FORTRAN (FORmula TRANslator) COBOL (COmmon Business Oriented Language) BASIC (Beginner’s All-Purpose Symbolic Instruction Code) Pascal home

Thriving Third-Generation Languages C C++ Java Active. X home

Fourth-Generation Languages (4 GLs) Builds programs with a front end, which is an interface that hides much of the program from the user Provides prototypes, which are samples of the finished programs home

Examples of Fourth-Generation Languages Visual Basic (VB) Visual. Age Authoring environments home

Fifth-Generation Languages (5 GLs) Advanced authoring environments considered by some to be 5 GLs home

World Wide Web Development Languages Hyper. Text Markup Language (HTML) Extensible Markup Language (XML) Wireless Markup Language (WML) Dreamweaver Flash Director home

Systems Development Life Cycle for Programming Phase 1: Needs analysis Phase 2: Program design Phase 3: Development (also called coding) Phase 4: Implementation Phase 5: Maintenance home

Lesson 13 B Programming Languages and the Programming Process

Review Questions What is syntax? What are three programming categories based on evolution? Name thriving third-generation languages. What are two features of fourthgeneration programming languages? home