Interested to Buy Any Domain ? << Click Here >> for more details...
Why is mapping required? Computer 'Paging' & 'Segmentation'.
- 2 Answers
- 5179 Views
- I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / vikram
virtual address concept allows a operation system to execute
a process without having the entire process in the main
memory. That is you have only a part of the process which is
just enough for execution at that point of time. But from
the computers point of view it is thinking that the entire
process is available in the memory. To make this work we
make believe the computer with a bigger memory say 2gb
virtual memory but you are having only 1 gb physical memory.
now the computer as usually tries to get a part of the
process in the the cpu for execution. But the part requested
may be present in the main memory or not because we have
bluffed the computer by giving virtual address. So in
situation where we have the part in main memory we have to
give the computer with that physical address.
so the procedure which gives the physical address from its
virtual address is called paging.
Segmentation is totally a different concept. A segment would
comprise of a function that you have written in your code.
In this case to refer to a function you have to refer to
that function and then to the page that has this segment.
This concept is called segmented paging.
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / banavathvishnu
Virtual Address Space is created at the time when a new
process is created.
The address space for each process is private.
Each Virtual Address is mapped to the physical address
using Page Table.
| Is This Answer Correct ? | 0 Yes | 1 No |
Some omeone on campus calls and says they have a new Mac. They've just pulled it out of the box and want to plug it into the campus network. What might they need to set to make this work?
Have you used threaded trees anytime in your life time?
What are necessary conditions for dead lock?
What is root partition?
Write syntax to set JVM Memory as min-256Mb & max 512Mb?
What is the operating system?
What is feram?
How do I recover files from my usb?
What is the largest ram?
What killed mandla maseko?
Explain the functions of the cu and alu in the cpu of a computer.
What do you know about a pipe? When is it used?
Windows 
