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Explain the differences between Paging and segmentation.
Paging and segmentation
Paging
Segmentation
Computer memory is separated into small partitions which are all similar size and considered to as, page frames. Then while a process is loaded this gets divided in pages that are similar size as those earlier frames. The process pages are after that loaded in the frames.
Memory-management scheme which supports user vision of memory.
Computer memory is allocated in different sizes (as segments) depending upon the required for address space through the process.
Address generated through CPU is divided into:
Page number (p) - It used like an index in a page table that contains base address of each page into physical memory.
Page offset (d) - It combined with base address to describe the physical memory address which is sent to the
memory unit.
Logical address contains a two tuple:
< segment-number, offset >
Transparent to programmer (i.e. system
allocates memory)
Includes programmer (i.e. allocates memory to
specific function inside code)
No separate- the protection
To separate the protection
No separate- the compiling
To separate the compiling
No shared-the code
To share the code
What is memory mapped I/O? When the I/O devices share the similar address space, the arrangement is known as memory mapped I/O.
Macroscopic and Microscopic approaches - Thermodynamics: Thermodynamic studies are undertaken by following two different approaches. l. Macroscopic approach (Macro mean big)
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The decimal equivalent of Binary number 11010 is ? Ans. 11010 = 1 X 2 4 + 1 X 2 3 + 0 X 2 2 + 1 X 2 1 = 26.
Define memory management system? The part of the computer system that supervises the flow of information among auxiliary memory and main memory is known as memory management sy
An ActiveX interface is a group of linked functions that are grouped together
Erlang is used to (A) Measure busy period (B) Give total busy period in minutes (C) Measure average call rate (D) Indicate total call period Ans
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