Programming Fundamentals

Sequence

Sequence

Lines of code that run in the order they are written, one after the other.

Selection

When the flow of a program is changed, depending on a set of conditions.

Iteration

Repeating a line or a block of code using a loop.

Counter controlled iteration

When the code is repeated a fixed number of times e.g. using a for loop.

Variable

A named memory location that holds data that during the execution of a program. the data can change during execution.

Constant

A named memory location that holds data that during the execution of a program. the data can’t change during execution.