Difference between Random Access Memory (RAM) and Hard Disk Drive (HDD)
A person novice to computers often is in confusion between Random Access Memory (RAM) and Hard Disk Drive (HDD). Here we draw comparisons between the… Read More »
Tag Archives: memory-management
2D and 2.5D Memory organization
Internal structure of Memory either RAM or ROM is made of memory cells which contains a memory bit. A group of 8 bits makes a… Read More »
Requirements of Memory Management System
Memory management keeps track of the status of each memory location, whether it is allocated or free. It allocates the memory dynamically to the programs… Read More »
Program for Worst Fit algorithm in Memory Management
Prerequisite : Partition allocation methods Worst Fit allocates a process to the partition which is largest sufficient among the freely available partitions available in the… Read More »
Program for Best Fit algorithm in Memory Management
Prerequisite : Partition allocation methods Best fit allocates the process to a partition which is the smallest sufficient partition among the free available partitions. Example:… Read More »
Program for First Fit algorithm in Memory Management
Prerequisite : Partition Allocation Methods In the first fit, the partition is allocated which is first sufficient from the top of Main Memory. Example :… Read More »
Virtual Memory in Operating System
Virtual Memory is a storage allocation scheme in which secondary memory can be addressed as though it were part of main memory. The addresses a… Read More »
Segmentation in Operating System
A process is divided into Segments. The chunks that a program is divided into which are not necessarily all of the same sizes are called… Read More »
Page Replacement Algorithms in Operating Systems
In an operating system that uses paging for memory management, a page replacement algorithm is needed to decide which page needs to be replaced when… Read More »
Partition Allocation Methods in Memory Management
In the operating system, the following are four common memory management techniques. Single contiguous allocation: Simplest allocation method used by MS-DOS. All memory (except some… Read More »
Operating Systems | Memory Management | Question 10
Consider data given in the above question. What is the minimum number of page colours needed to guarantee that no two synonyms map to different… Read More »
Operating Systems | Memory Management | Question 9
A computer uses 46–bit virtual address, 32–bit physical address, and a three–level paged page table organization. The page table base register stores the base address… Read More »
Static and Dynamic Libraries | Set 1
When a C program is compiled, the compiler generates object code. After generating the object code, the compiler also invokes linker. One of the main… Read More »
Operating Systems | Memory Management | Question 8
Thrashing occurs when (A) When a page fault occurs (B) Processes on system frequently access pages not memory (C) Processes on system are in running… Read More »
Operating Systems | Memory Management | Question 10
Page fault occurs when (A) When a requested page is in memory (B) When a requested page is not in memory (C) When a page… Read More »
