Computer Concepts 5th Edition Parsons/Oja Page 546 CHAPTER 11 Software Engineering Section A PARSONS/OJA Computer Programming

Computer Concepts 5th Edition Parsons/Oja Page 548 Section A Chapter 11 Computer Programs  A computer program is a set of detailed, step-by-step instructions that tell a computer how to solve a problem or carry out a task  Low-level language: uses binary digits which is what the computer understands  Can only be run on one machine

Computer Concepts 5th Edition Parsons/Oja Page 548 Section A Chapter 11 Computer Programs  High-level language: machine independent  Must be translated into machine language Compiler: translates entire program into machine language and then executes program  Also checks for errors as it translates Interpreter: translates and executes high-level language one statement at a time  Displays feedback immediately if it finds errors  Runs slower than a compiler

Computer Concepts 5th Edition Parsons/Oja Page 548 Section A Chapter 11 Computer Programs Computer Programs:  BASIC: simple programming language  Developed in the mid 1960s  Simple.  Visual Basic: uses graphical interface which permits developers to drag and drop objects to build programs  C++: Object-oriented version of C  Objects: contains both data and procedures to manipulate the data

Computer Concepts 5th Edition Parsons/Oja Page 548 Section A Chapter 11 Computer Programs Computer Programs:  COBOL: used for transaction processing on mainframes  Easier to code due to English like statements  FORTRAN: used primarily in scientific applications  Java: object-oriented language used for Internet applications  SQL: used for databases