What is the most popular ever unprotected operating system? What are the three m

Question

What is the most popular ever unprotected operating system? What are the three main reasons why some operating systems do not implement any protection? Who was the creator of the first ever operating system for personal computers? Consider modem operating system kernel architecture, Are device drivers part of kernel? Are device drivers part of microkernel or extended kernel? For the given decimal system value of the logical address of the MS/DOS Intel 8086 processor Calculate in hexadecimal code the logical program's address value A_1= ? Calculate in hexadecimal code the exact real/physical memory address value A_r=? How many bits is used to represent long logical, (internal program's), MS/DOS address? How many bits is used to represent shorter real/physical, (external address bus's), Intel 80S6 address? System uses 512B logical page and 512B physical memory' frames for its paging and virtual memory scheme. At run time, program P_1's uses internally logical addresses starting from 0th logical-memory-map-location. Convert one-dimensional program's logical addresses A_P =1025 to the two dimensional virtual address A_v using the format A_v = (page-Number, displacement) What docs Virtual memory management protect? Is VM ware virtual operating system or virtual hardware machine software? Which one of the two? How is the swap space implemented in WindowsXP OS? Is it implemented as a swap partition or as a swap file?

Explanation / Answer

1. The most popular ever operating system is Microsoft windows 95/98/XP.

2. There are three main reasons, the operating systems do not implement any protection are

To support the multimedia functionality

To increase the speed of the operating system

To avoid the hardware compatibility issues

3. Microsoft was the first creator of ever operating system for personal computers.

4. Yes, device drivers are the part of the modern kernel architecture. Device drivers comes under the device management in modern kernel architecture

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