Question

True or False

(xvi)	Device drivers are a part of user interface.
(xvii)	Star networks are same as networks of computers used to process data about stars in the sky.
(xviii)	1 petabyte equals 253 bits.
(xix)	Auditing software in the context of operating systems is a software that creates a software during an attack on a computer/computers, to defend the computer/computers.
(xx)	A dispatcher in the context of operating systems chooses the activities to consider for execution.

Answer 1

xvi) Device drivers are the kind of software which are installed in the system so that the CPU of the computer can easily communicate to the devices or peripherals attached to computer like printer, gaming devices, speaker, etc. This provides an interface between the computer and the hardware attached to it. It doesn't provide any interface between human and computer. So device drivers are not a part of user interface.

The statement is FALSE

xvii) Star network are the kind of computer network topology where there is a central hub to which many hosts are connected. This provides a way of communication between the devices connected to the network. It doesn't process data about stars in sky.

The statement is FALSE

xviii) 1 petabyte equals 10^15 bytes. 1 byte equals 8 bits.

So, 1 petabyte = 8*(10^15) bits

2^53 bits equals approx 9*(10^15) bits.

Hence, the statement is FALSE.

xx) A scheduler is a kind of program which selects or chooses the activities or process to consider for execution. After scheduler dispatcher comes which gives process control over the CPU for execution of activity.
Hence, the statement is FALSE.