Unit 4: i still dont know

• expression: a combination of operators and values that evaluate to a single value
• Variable: holds one value at a time
• Assignment operator: allows a program to change the value represented by a variable (= or <-)
• Boolean Value: a data type that is either true or false
• Boolean Expression: evaluates to true or false.
• Comparison Operators: <, >, <=, >=, ==, != indicates a boolean expression
• Logical Operators: &&, ||, ! (AND, OR, NOT). Both sides of the logical operator are reduced to single boolean value
• Function: a named group of programming instructions. Also referred to as a "procedure".
• Function Call: a command that executes the code within a function