FUNDAMENTALS OF COMPUTER

APPLICATION SYSTEM SOFTWARE

WHAT IS COMPUTER SOFTWARE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is OS Virtualization?
A
The use of multiple hard disk to create one logical disk.
B
The use of a software to run multiple OS on the same hardware.
C
The use of software and hardware to emulate a Network.
D
The use of hard disk to expand the total memory available to the OS.
Explanation: 

Detailed explanation-1: -Virtualization uses software to create an abstraction layer over computer hardware that allows the hardware elements of a single computer-processors, memory, storage and more-to be divided into multiple virtual computers, commonly called virtual machines (VMs).

Detailed explanation-2: -As mentioned above, virtualization allows an organization to create multiple virtual machines-each with their own operating system (OS) and applications-on a single physical machine. A virtual machine can’t interact directly with a physical computer, however.

Detailed explanation-3: -Virtualization allows running multiple operating systems concurrently, serving the different needs of various subsystems, such as real-time environment vs. high-level API.

Detailed explanation-4: -A hypervisor is a crucial piece of software that makes virtualization possible. It creates a virtualization layer that separates the actual hardware components-processors, RAM, and other physical resources-from the virtual machines and the operating systems they run.

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