Programmer mistake in the algorithm, causing unexpected behavior (program still runs!)

Ex. Assigning a value to the wrong variable

Ex. Flipping a logical operator (< or >)

Ex. Multiplying two numbers instead adding them

Logic Error

A typo that will result in the program not compiling/running

Ex. Missing semicolon (;)

Ex. Using square brackets instead of curly brackets

Ex. Forgetting to declare a variable before using it

Ex. Neglecting to put a string in quotation marks (ex. "cat")

Syntax Error

Program fails in the middle of running (program runs initially, but does not finish)

Ex. A program failing when it tries to divide by 0

Ex. A program failing when the user enters unexpected data (ex. string instead of integer)

Ex. A program failing when it references a nonexistent file

Run Time Error

Occurs when a program encounters a value that is too big to calculate or display

Ex. a 4 bit adder adding binary numbers 0111 and 1101

Ex. Trying to fit 12 cans of soup in a box designed to fit 10

Ex. Trying to store 256 in an 8-bit binary number.

Overflow Error