An aerospace telemetry centre needs to monitor real-time satellite diagnostics.
The data from the database table telemetry_records is imported into a program written in a high-level programming language.
The program stores this data in a two-dimensional (2D) string array with the identifier satelliteData.
The data to be stored is shown in the table below:
| Timestamp | SatID | Subsystem | TempCelsius |
|---|---|---|---|
| 08:15:22 | SAT-Alpha | Propulsion | 42 |
| 08:15:45 | SAT-Beta | Guidance | -5 |
| 08:16:12 | SAT-Alpha | Power | 18 |
| 08:16:30 | SAT-Gamma | Payload | 30 |
In this table, the value of satelliteData[1, 1] contains "SAT-Beta".
Because an array can only store data of one data type, any non-string data (such as the integer values representing temperature) must be converted to a string before it can be stored in the array.
Identify the computing term used to describe converting a value from one data type to another.
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.