Question

1.) Why do we have to install different Device Drivers for different Operating Systems for a particular I/O device?

2.) A process can share all or part of its PCB data with other processes. List and explain two methods can be used to accomplish this task.

3.) List the memory units inside and outside of the CPU, along with short descriptions of their purposes.

Answer 1

1.Answer:

The device drive which we installing on the operating system it has its own functionality.

-The operating system have a device driver for the every individual controller.

-The I/O started when the device driver loads the suitable directory with in the device controller.

2.Answer:

PCB(Process Control Block) is major data structure in an operating system.The Process Control Block are which are located inside the operating system memory.

The process of creating Process Control Block:

-Operating system allocates a Process Control Block for it.

-Operating system initialized Process Control Block.

-OPerating system puts Process Control Block on the exact queue.

3.Answer:

The Motherboard, Processor, RAM are mainly known as memory units located inside of the CPU
Harddrive, VideoCard and Power Supply are mainly known as memory units located outside of the CPU

Motherboard: It controls every component which are connected either internal or external to the system.

Processor: It is also known as Engine of the system are also it is known as brain of the system.

Memory or RAM: RAM (random access memory) it is primary memory which hold the data temperory.

Hard disk: it is the primary storage device which is connected internally to the system inorder to access the data or to work with the help of operating system.

Video Card: The video card are also known as graphics adapter which controls the data displayed on monitor