11May/17

Deadlock Avoidance

May 11, 2017OSbanker's-algorithm, deadlock, deadlock-avoidance, deadlock-avoidance-techniques, deadlock-state, limitations-of-banker's-algorithm, safe-state, unsafe-stateDreamMaker

Hello everyone! In my previous two posts I had explained some basic information regarding “Deadlock” and “Necessary Conditions to occur Deadlock”. if you haven’t read those posts yet, I strongly suggest youRead More…

01May/17

Necessary Conditions for Deadlock

May 1, 2017OSdeadlock-conditions, necessary-conditions-to-occur-deadlockDreamMaker

In previous post I explained about what is deadlock and now in this post I will try to explain necessary conditions to occur deadlock. It focuses on what conditions need to beRead More…

01May/17

Deadlock

May 1, 2017OSdeadlock, deadlock-creation, deadlock-occurance, system-in-deadlockDreamMaker

In this and following posts I am going to explain one of the most important issue of the operating system design called “Deadlock”.  It deals with the basic concept of deadlock, howRead More…

20Mar/17

Cache memory

March 20, 2017OSassociative-memory, cache-memory, CAM, content-addressable-memory, memory-hierarchyDreamMaker

We already talked about “Storage Hierarchy” in the previous article in which we explained about the different types of memories and their characteristics. This article deals with the similar topic in whichRead More…

19Mar/17

Storage Hierarchy

March 19, 2017OSmemory-hierarchy, storage-hierarchy, system-storageDreamMaker

One of the important component in the computer system is the computer storage. In this post we will focus on the storage hierarchy. The wide variety of storage system can be organizedRead More…

19Mar/17

LRU Algorithm

March 19, 2017OSleast-recently-used-algorithm, LRU-algorithm, page-replacement-algorithmDreamMaker

After discussing Optimal algorithm for the page replacement policy, now its time to move on the next page replacement algorithm which is “LRU Algorithm”. LRU stands for Least Recently Used Algorithm andRead More…

16Mar/17

Optimal Algorithm

March 16, 2017OSmin-algorithm, optimal-page-replacement, page-replacement-algorithmDreamMaker

We were talking about page replacement algorithms in which we had discussed “FIFO algorithm”. In this post I am continuing on the same topic by discussing another page replacement algorithm called OptimalRead More…

13Feb/17

First In First Out (FIFO)

February 13, 2017OSfifo, fifo-algorithm, page-, page-replacement-algorithmDreamMaker

FIFO is a simplest page replacement algorithm. In this algorithm arrival time of the page into the memory is recorded. When there are no free frames available in the memory and aRead More…

07Feb/17

Page Replacement

February 7, 2017OSpage-replacement, page-replacement-algorithmsDreamMaker

When the process try to access location that are not in memory the hardware trap to the operating system is generated. ( to read more, refer our articles memory protection and interruptRead More…

06Feb/17

Demand Paging

February 6, 2017OSdemand-paging, paging, Segmentation, virtual-memoryDreamMaker

In my previous post I had discussed about virtual memory. In this post I will discuss how virtual memory can be implemented using demand paging. In demand paging, a page is loadedRead More…