Reference library on memory management Research Paper

Reference library on memory management - Research Paper Example Apart from many advantages, virtual memory and paging have various disadvantages as well. One of the challenges is the extra resource consumption, i.e. overhead for saving page tables in the memory (Null & Lobur, 2010). In environments where numerous applications are operating, the page table occupies a significant part of the physical memory. However, this challenge can be addressed by paging the page tables; this is a complex and confusing task (Null & Lobur, 2010). These challenges are not significant as compared to benefits of virtual memory and paging offers. Advantages of virtual memory and paging are easy to understand. For instance, programs are not limited to the physical memory present on the system, as virtual memory allows executing individual programs possessing larger virtual address space when compared to available physical memory (Null & Lobur, 2010). This process helps the programmers to avoid worrying about physical address space boundaries. Moreover, virtual memory also facilitates multi-tasking by executing more than one program simultaneously, and, as a result, system throughput and CPU utilization enhance. The limited size of pages and frames eases the tasks for placement and allocation for the operating system. Moreover, the paging process facilitates the operating system to protect and share the page on specific permissions (Null & Lobur, 2010). ... Moreover, the physical memory remains intact and is not divided into any sort of fixed or equal size partition. Whenever there is a requirement of copying a segment in the physical memory, free memory is analyzed by the operating system, and after finding a chunk it is adequate enough to store an entire segment (Null & Lobur, 2010). Likewise, every segment possesses a base address that provides an indication of its location in the memory along with bound limits reflecting its size. Now every program incorporating various segments is now linked to a segment table instead of a page table. Likewise, the segment table incorporates the assembly of base for every segment (Jipping, 2007). The role of virtual memory in smart phone operating systems is also vital. For programming and designing virtual memory for a smart phone operating system, logical-segment addresses and physical-segment- addresses is the prime focus. Likewise, the segments are tagged with numbers, and these tags are incorp orated within a logical address. For instance, a typical address format will be a , in which the segment number is the starting part of the address and the offset is identified as the last part of the address. Memory Management Technique for Paging on Distributed Shared Memory Framework The two analogous computer classes, i.e. shared memory and distributed memory, are symbolized by the DSM Systems (Hine, Mitrani, Tsur, & Gaines, 1979). This system works by providing shared memory generalizing in the system that further physically distributes the memory and thus combines the rewards of both the approaches. In fact, the DSM system is described as a memory system that physically distributes but is

FM Essay Example | Topics and Well Written Essays - 4000 words

FM - Essay Example Practicing managers are interested in this subject because among the most crucial decisions of the firm are those which relate to finance, and an understanding of the theory of financial management provides them with conceptual and analytical insights to make those decisions skillfully1. Financial management, as an academic discipline, is concerned with decision-making in regard to the size and composition of assets and the level and structure of financing. To make wise decisions a clear understanding of the objectives, which are sought to be achieved, is necessary. The objective provides a framework for optimum financial, decision-making. In other words, they are concerned with designed a method of operating the internal investment and financing of a firm. These all are done in a systematic way if financial management is studied 2. Financial management is related to profit maximization as a decision criterion. According to profit maximization goal, actions that increase profits should be undertaken and those that decrease profits are to be avoided. In specific operational terms, as applicable financial management, the profit maximization criterion implies that the investment, financing and other decisions of the problem should be oriented to the maximization of profits. Though in our specific proble... In specific operational terms, as applicable financial management, the profit maximization criterion implies that the investment, financing and other decisions of the problem should be oriented to the maximization of profits. Though in our specific problem, financial goal is set up in such a way that of not operating at a loss, financial management is needed at all as the main objective of financial management is profit maximization. Workings for setting up financial goal: Fixed cost: Refurbishment cost 3: 8000 Building fixed overheads: 2000 per month 2000 6 months=12000 for 6 months So total fixed cost= 8000+12000 =20000 Fluctuation of Personnel Contingent 4 100 150 200 250 300 Cost of Goods sold 5 108000 162000 216000 270000 324000 Advanced stock Purchased for 2 weeks 3600 5400 7200 9000 10800 Total variable Cost 6 111600 167400 223200 279000 334800 Total revenue: Spend of customers/ Revenue of the store 7 150000 225000 300000 375000 450000 Total cash inflow Considering Fluctuations: 3000 8 153000 228000 303000 378000 453000 Total cash inflow Considering Fluctuations: 4000: 154000 229000 304000 379000 454000 Net cash inflow (Considering starting Cash as 3000) 9 21400 40600 59800 79000 98200 Remark 10 So to operate the store at not operating loss the minimum financial goal have to be 153000 for six months. Requirement 2: Tools to analyze a project: Ratios provide very useful tools for the manager to assess the organization by making two basic types of comparisons. First, the analyst can compare a present ratio with past (or expected) ratios for the organization to determine if there has been an improvement or