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Programming Logic

Programming Logic and Design

QuestionAnswer
4 Major Operations Input; Process; Output; Storage;
Compiler computer program that translates the source code into machine language
Intepreter computer program that reads the source code of a program and executes it
Syntax rules of a computer programming language
Syntax Errors errors that can be detected by the compiler/interpreter
Logical Errors errors that cannot be detected by the compiler/interpreter
6 Steps of Programming 1. understand the problem; 2. plan the logic; 3. code the program; 4. translate the program into machine language; 5. Test the program; 6. Put the program into production;
Database data that is held in groups of files called tables, and together serves the information needed by an organization
variables memory locations which contains contents that can vary or differ over time
variable rules one word; have appropriate meaning; can't start with a number;
Camel Casing for variable names with multiple words, each word after the first begins with an uppercase letter.
Types of structures sequence; selection; looping;
spaghetti code flowcharts that are not structured or organised
Sentinel Value a value that is used to terminate a loop; value selected should be distinct form all legal data values;
Modules / Functions / Methods / Subroutines break programming problem into smaller parts
Reasons for Modules / Functions (4) 1. provides abstraction; 2. allows multiple programmers to work on problem; 3. allows functions to be reused; 4. easier to identify structures;
abstraction paying attention to important properties of the code while ignoring non-essential details
Created by: narrthine
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