An embedded microcontroller in an automated greenhouse irrigation system must retain its scheduling configuration even when the main power source is completely disconnected.
Define the category of memory that is required to prevent data loss under these conditions.
Practise AQA GCSE Computer Science Hardware and software with exam-style questions for GCSE Computer Science. 51 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.