HydroExplorer-6 is an autonomous deep-sea research vehicle deployed to monitor physical and chemical conditions in ocean trenches. The vehicle uses an onboard controller connected to multiple oceanographic sensors and mechanical systems. The following data is stored in the system:
| Data stored | Variable identifier | Example data |
|---|---|---|
| The mission operator's registration code | OperatorRef | OP_882_X |
| The alphanumeric ocean sector locator | SectorLocator | PAC-4B |
| Whether the pressure vessel seal is currently secure | SealSecure | True |
| The measured depth of the rover in kilometres | DepthKm | 8.425 |
| The total number of high-resolution photos captured today | PhotoCount | 147 |
| A single-character priority code for physical samples | SamplePriority | H |
Identify the most appropriate data type for each variable by selecting one option in each row.
| Variable | Boolean | Char | String | Integer | Real |
|---|---|---|---|---|---|
| SectorLocator | |||||
| SealSecure | |||||
| DepthKm | |||||
| PhotoCount |
Practise OCR GCSE Computer Science Data types with exam-style questions for GCSE Computer Science. 26 questions, matched to the OCR GCSE Computer Science (J277) specification and written in Component 01 and Component 02 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.