A IP softswitch is a controlling device for connecting/managing telephone calls while an IP PBX is a phone system used for transmitting voice, video and other data over networks like the internet.
the HAL
sdd
Operating System have a major component called KERNEL that is designed to interact with hardware .Kernel acts as an interface between OS Shell & Hardware.
It sounds to me like you are referring to the kernel of the operating system.
MFT
The operating system and the hardware device drivers.
Correct Answer: Operating System
Apple regulates the hardware very strictly.
An Operating System.
It is used as a connection between the hardware and the liveware.
System programming or system software is a set of programs that co-ordinates the activities of hardware and programs. But OS meant it is a software that controls the computer hardware.
They both convey messages or information relatively quickly.