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An algorithm is used to control an automated greenhouse climate system:

1      ambient_temp ← USERINPUT
2      IF ambient_temp < 15.0 THEN
3          heater_on ← TRUE
4          target_power ← 250
5      ELSE IF ambient_temp >= 25.0 THEN
6          heater_on ← FALSE
7          target_power ← 0
8      ELSE
9          heater_on ← TRUE
10         target_power ← 100
11     ENDIF

Choose one option which shows the data type of the variable heater_on in this algorithm.

$Boolean\text{Boolean}$

$Integer\text{Integer}$

$String\text{String}$

$Real\text{Real}$

Data types Questions

Practise AQA GCSE Computer Science Data types with exam-style questions for GCSE Computer Science. 50 questions, matched to the AQA GCSE Computer Science (8525) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.