The OS (operating system) or s video (OS) is a program that acts as an intermediary between the hardware (Hardware) and software applications in General, which serves information from another user, one at a time.
OS (operating system) or OS (OS) is a program that acts as an interface between the hardware (Hardware) with application software, which is responsible for receiving data from another user.
Operating system (operating system) or OS (OS) is a program that serves as a central connection between hardware (Hardware). With the general application software which serves traffic from the user again.