Fortnite has been made by Epic Games with their own engine What is Unreal Engine 4 that is freely available to everyone. The cool thing about it is that it doesn't require a programming language to make games. Unreal Engine itself is made in C++, but developers mostly use its main feature, blueprints.
D. RAM <span>Primary storage typically refers to random access memory (RAM), while secondary storage refers to the computer's internal hard drive. RAM,
commonly called "memory," is considered primary storage, since it
stores data that is directly accessible by the computer's CPU.</span>
A control system manages, commands, directs, or regulates the behavior of other devices or systems using control loops. It can range from a single home heating controller using a thermostat controlling a domestic boiler to large industrial control systems which are used for controlling processes or machines.