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Programming

Concepts of programming

QuestionAnswer
What is a HIGH level programming language? A problem oriented language consisting of English like statements.
What is a programming language? A vocabulary and set of grammatical rules for instructing a computer to perform specific tasks.
What is a variable? A symbol or name that stands for a value. When a name is assigned to a memory location so that changing data can be stored
What is a constant? When a name is assigned to a memory location to store a fixed piece of data eg PI=3.142
What is the process of dry running? When a program is producing unexpected results, the programmer will manually record the value of all variables after each line of code has been executed.
What is iteration? A programming structure which allows a section of code to be repeated a number of times.
What is selection? A programming structure which allows one set of statements to be executed depending on a condition.
What is a procedure? A separate section of code which is only executed when called.
What is the difference between a procedure and a function? A function call is part of an expression. eg VAT(amount%) A procedure call is a statement on its own. eg CALL VAT(amount%)
Give an example of an assignment statement. spaces := spaces + 1
Name 3 different types of data. string, integer, real, boolean
Created by: kjg