To ensure they're translated properly on other operating systems.
Answer:
It's simply a software that runs a computer's basic tasks, or functions, such as scheduling, running applications, and controlling peripherals.
This may be considered particularly appropriate since, due to the room-based nature of traditionalMUDs<span>, ranged combat is typically </span>difficult<span> to implement, resulting in </span>most MUDs<span> equipping characters mainly with close-combat weapons.</span>
