Discussion Post: Operating System
a)	Explain the purpose of an operating system for a personal computer.
b)	Give a brief description of the hardware components of a computer that the OS interfaces with. Motherboard, CPU, RAM, hard drive, sound controller, power supply, input and output devices, etc.
The response must include a reference list. Using Times New Roman 12 pnt font, double-space, one-inch margins, and APA style of writing and citations.