YEAR 1 CO2 WEEK 3 + 4 SELECTION AND ITERATION

Question 1

Define sequence.

Answer 1

Type of algorithm follows sequence of instructions in order.

Question 2

Define selection.

Answer 2

To execute selected piece of code if condition is satisfied or true (also known as branching.)

Question 3

Define iteration.

Answer 3

Repeatedly executed selected code until condition is satisfied.
Can be count controlled where programmer knows in advance how many times they want code to repeat.
Condition controlled loops where programmer not know in advance how many times they want code to repeat.