Why is an iMac called a all in one?

An iMac is called an "all-in-one" because it integrates all the essential components of a desktop computer—such as the monitor, CPU, and often even the speakers—into a single unit. This design eliminates the need for separate components and minimizes cable clutter, making it more aesthetically pleasing and space-efficient. The all-in-one configuration also simplifies setup, as users only need to connect a power source and peripherals like a keyboard and mouse.