Question

Questions are in regards to Operating systems

4.1) What is a physical address?

4.2) What is a virtual address?

4.3) What is paging?  

4.4) What is segmentation?  

Answer 1

4.1) An address which is employed for recognizing a physical location inside the MMU that caluclates as per the corresponding logical address.Often called a real address.

4.2).A indicator to memory space which the operating system permits a process for employing.space might have many segments.Central Processing Unit produces this address.

4.3) A memory management technique where the data is preserved and handled in uniform blocks stated as pages.The idea of paging is to split every process as a pages. you can clear up the trouble of external fragmentation.

4.4) A technique where the data is splitted as varying size parts known as segments that is capable to assign for a process.The information regarding every segment were preserved in table known as a segment table.