Difference between segmentation and fragmentation

Answer 1

As for Segmentation in Computer Architecture logic, it's a meaningful unit of information eg procedures, large data structures etc. In segmentation every segment is in its own logical memory. # it has higher hit ratio # meaningful protection of segments # simplified sharing of code via dynamic linking # dynamic data structures OR Segmentation is one of the most common ways to achieve memory-protection; another common one is paging. Segmentation means that a part or parts of the memory will be sealed off from the currently running process computing, through the use of hardware-register. If the data that is about to be read or written to be outside the permitted address-space of that process, a segmentation-fault will result. Segmentation is a memory-management scheme that supports this user view of memory. A logical address space is actually a collection of segments. Each segment has a name and a length. The address specifies both the segment name and the offset within the segment. The user therefore specifies each address by 2 parameter: a segment name and an offset.

Answer 2

Both "segmentation" and "fragmentation" are applied to several significantly different processes in computers.

When a computer is "defragging" ( defragmentation ), it moves files/programs to different places on the hardrive to make the computer and programs run faster

k as for Segmentation in Computer Architecture logic,

its meaningful unit of information eg procedures,large data structures etc. In segmentation every segment is in its own logical memory.

1. it has higher hit ratio
2. meaningful protection of segments
3. simplified sharing of code via dynamic linking
4. dynamic data structures

OR

Segmentation is one of the most common ways to achieve memory-protection; another common one is paging. Segmentation means that a part or parts of the memory will be sealed off from the currently running process computing, through the use of hardware-register. If the data that is about to be read or written to be outside the permitted address-space of that process, a segmentation-fault will result.

Segmentation is a memory-management scheme that supports this user view of memory. A logical address space is actually a collection of segments. Each segment has a name and a length. The address specifies both the segment name and the offset within the segment. The user therefore specifies each address by 2 parameter: a segment name and an offset.

As for Segmentation in Computer Architecture logic, it's a meaningful unit of information eg procedures, large data structures etc. In segmentation every segment is in its own logical memory.

1. it has higher hit ratio
2. meaningful protection of segments
3. simplified sharing of code via dynamic linking
4. dynamic data structures

OR

Segmentation is one of the most common ways to achieve memory-protection; another common one is paging. Segmentation means that a part or parts of the memory will be sealed off from the currently running process computing, through the use of hardware-register. If the data that is about to be read or written to be outside the permitted address-space of that process, a segmentation-fault will result.

Segmentation is a memory-management scheme that supports this user view of memory. A logical address space is actually a collection of segments. Each segment has a name and a length. The address specifies both the segment name and the offset within the segment. The user therefore specifies each address by 2 parameter: a segment name and an offset.

In TCP/IP networking,

some point-to-point interfaces allow larger packets than other interfaces.

When the originating computer has a lot of data to transmit, it breaks it up into packets in a process called "segmentation".

The gateway between one interface and another performs a very similar process called "fragmentation" if necessary to break large packets up into small packets that will fit on the destination interface.

Typically those smaller packets continue hopping from one host to the next until they reach their destination, which performs "reassembly" to recover the original large packet and then pass it up the stack.

In computer networking, "segmentation" is the process of breaking up a large communications segment into smaller segments.

All the machines connected to the same continuous wire are part of the same segment.

Modern networks typically connect machines using a "network switch" or "network router", which is an active, intelligent device that forwards packets from one segment to another.

To reduce costs, older networks typically connected dozens of desktop computers to a single segment using passive hubs and repeaters.

The "segmentation" of an older network by physically replacing the passive hubs with network switches breaks up the large segment into many small segments, each segment with only 2 devices on it (one desktop computer and one switch).

Such segmentation improves performance by reducing the size of the collision domain.