Aqa A- Level Computer Science Actual Exam Latest Version 2024-2025 Questions And Accurate Answers Guaranteed Success

AQA A- LEVEL COMPUTER SCIENCE ACTUAL EXAM LATEST VERSION 2024-2025 QUESTIONS AND ACCURATE ANSWERS GUARANTEED success Finite state machine (FSM) A finite state machine is a model of computation for a machine that is always in one of a fixed number of states. The state of the machine can be changed according to transition rules, based upon the input that it receives and its current state. Some finite state machines produce output as they carry out transitions whilst others simply produce a yes/no response at the end of processing their input. Floating point notation A real number represented by a sign, some significant digits (the mantissa) and a power of 2 (the exponent). Foreign key An attribute in one table that is a primary key in another table. A type of association where the composite object has ownership of the objects within it. The objects that are part of the composite objects have a lifecycle determined by the composite object. If the composite object ceases to exist then they too will cease to exist.Conceptual model A representation of the data requirements of an organisation constructed in a way that is independent of any software that is used to construct the