Contiguous Vs Non Contiguous: What is The Difference between Contiguous and Noncontiguous Memory Allocation?
Memory is an enormous collection of bytes, and the term memory allocation is a method by which computer programs are allotted space. When it comes to memory allocation, it can be divided into two categories: contiguous memory allocation and non-contiguous memory allocation. In contiguous memory allocation, a single part of the memory section is allowed to accomplish the further process. While on other hand, in non-contiguous memory allocation, the method is assigned to different memory sections at multiple memory locations in the memory. There is so much to unfold. Let’s find out the difference between Contiguous and Noncontiguous Memory Allocation in detail.
What Is Contiguous Memory Allocation?
Contiguous memory allocation is a procedure in which a single segment of memory is assigned to execute the process.
In this memory allocation scheme, all the free memory space can stay at the same place concurrently.
What is Non-Contiguous Memory Allocation?
In non-contiguous memory allocation, the operation is allowed to different memory sections at multiple memory positions in the memory.
Difference between Contiguous and Noncontiguous Memory Allocation
| S.No | Contiguous Memory Allocation | Non-Contiguous Memory Allocation |
| 1. | In contiguous memory allocation, a sole contiguous segment of memory is assigned to execute the process. | In non-contiguous memory allocation, the process is allowed to various memory sections at multiple memory locations in the memory. |
| 2. | The execution is faster in In contiguous memory allocation | The execution is slower in In non-contiguous memory allocation. |
| 3. | It is simple to manage. | It is hard to manage. |
| 4. | It involves both single-partition and multi-partition allocation. | This memory allocation scheme includes segmentation and paging. |
| 5. | In this, there is a destruction of memory. | In this, there is no destruction of memory. |
| 6. | In this, both internal and external fragmentation occurs. | In this, only external fragmentation occurs. |
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