Description Of A Virtual Memory - 1688 Words

Tony Mendoza Operating Systems Dr. Huson May 9, 2015 Virtual Memory Virtual memory came into existence in 1961, when a group of people at Manchester, England proposed a method for performing the overlay process automatically. Virtual memory is one of those aspects of a computer that we just assume will be there and do not fully appreciate. Virtual memory refers to an imaginary set of locations, or addresses, where you can store data. The reason why it is considered imaginary is due to the fact that the memory is not the same as the real physical memory made up of transistors or capacitors. Using memory efficiently has been a large problem ever since the creation of the stored-program computer. The actual concept of virtual memory can be quite confusing. The concept is to substantially increase the apparent amount of physical memory that is available to different programs. The free space on the computer’s hard drive is viewed as an extension of its RAM memory. Different pages are moved from an actual memory to a place on the hard drive. The mov ed files can increase or decrease in size as the need for memory changes. In this essay we going into further detail on virtual memory and the advantages of having this process in existence. Virtual memory is a feature of an operating system that enables a process to use a memory (RAM) address space that is independent of other processes running in the same system, and use a space that is larger than the actual amount of RAM present,Show MoreRelatedChapter 5 Of The Windows Internals Textbook1076 Words   |  5 PagesWindows Internals textbook written by Mark Russinovich, David Solomon and Alex Ionescu covers Windows memory management. This chapter goes over virtual address space, copy-on-page writing, and paging. One of the topics I am covering for my final is the similarities and differences between memory management in Windows and FreeBSD so this citation will provide insight on how Windows manages memory. Design and Implementation of the FreeBSD Operating System, 2nd ed, Chapter 2 Chapter 2 of the FreeBSDRead MoreWhat Is Deploying A Virtual Machine?935 Words   |  4 PagesTask 3 Short Description of Task Deploying a virtual machine from a template. Long Description of Task A new virtual machine will be deployed from a template that has been prepared before. This procedure will save time and simplify the creation of virtual machines as new virtual machines have already configured with the virtual hardware, installed software, and other properties contained in a template. Pre-Implementation Test Plan †¢ Ensure that all servers for infrastructure are running. †¢ EnsureRead MoreJava Programming1156 Words   |  5 Pages ââ€" º class ââ€" º template ââ€" º type* Q2. Which of the following causes run time binding? ââ€" º Declaring object of abstract class ââ€" º Declaring pointer of abstract class ââ€" º Declaring overridden methods as non-virtual ââ€" º None of the given Q3. A function template can not be overloaded by another function template. ââ€" º True ââ€" º False Q4. Which of the following is the best approach if it is required to have more than one functions having exactly sameRead MoreTechnology And The Human Computer Interface1144 Words   |  5 Pageshuman-computer interface. As a software engineer, I will use this paper to describe the term â€Å"Haptic Feedback,† its key uses and why it is needed. In addition, I will compare the various types of human memory mentioning their impact on the human-computer interface. I will also give a detailed description of the potential outcomes of not making use of consistency in the human computer interface, summarize and explain the steps of user-centric design process and the role of human motion in the human computerRead MoreWonder Widgets Inc. The Virtual Network Switchs : Description Of The Structure Of A Virtual Network974 Words   |  4 PagesWonder Widgets Inc. – Virtual Network Switches Introduction Virtual switches allow virtual machines on the same ESX server host to talk with each other using comparative traditions that would be used over physical switches, without the requirement for additional frameworks organization hardware. Description of the structure of a virtual network In enrolling, coordinate virtualization or system virtualization is the way toward joining apparatus and programming structure assets and structure anRead MoreEssay about The Human-Computer Interface1602 Words   |  7 PagesFeedback?) Haptic technologies known as haptic feedback is technologies that allow users to feel a response from a system, not just see or hear a response; optimally, can replicate the sensation of feeling an object in the real life to create a virtual tactile experience. (Anderson, Greg, David L. Ferro, and Robert Hilton) Haptic feedback is a signal that you’re electronics like phones, computers, PlayStation 3 controllers, XBOX 360 controllers and other devices. It will vibrated or leave note whenRead MoreHow Social Networking Affects Our Community1515 Words   |  7 Pageslocation but rather as a social process outlined by interpersonal relationships. This was called the ‘Social Network Theory’ as applied by Calhoun and Bender. These inte rpersonal interactions are not limited to actions but also on a shared values, memories, beliefs and goals. (Bartle, 2011, Walsh High, 1999) This is in essence the idea of what modern media social networking systems such as Facebook and Twitter. A community defined by location is no longer static but instead the community’s extentRead MoreWhat Is the Effect of Media Violence on Children1314 Words   |  6 Pagestelevision (e.g., Thomas, Horton, Lippincott, amp; Drabman, 1977) or to videogames (Carnagey, Anderson, amp; Bushman, 2007) , participants show reduced skin conductance and heart rate reactivity when encountering subsequent descriptions of real violence. In other words, exposure to virtual violence produces desensitization to actual violence, which has been linked to increased aggression and reduced helping. (180) Survey research has shown that one quarter of children in the U.S have at least one televisionRead MoreTest1746 Words   |  7 Pages1. | |    | Secondary storage is also called ____. | | Possible Answers | 1. | volatile memory | 2. | primary storage | 3. | permanent storage | 4. | main memory | |    | | 2. | |    | ____ are NOT commonly used smartphone operating systems | | Possible Answers | 1. | iPhone OS and RIM OS | 2. | Symbian and Palm OS | 3. | HP-UX and z-OS | 4. | Android and Windows Mobil | |    | | 3. | |    | People using commercially available softwareRead MoreImportance of IT Support Systems1230 Words   |  5 Pagesguards of the user accounts including ID and password, along with tools to reset the password. The last is service catalog, help desk should have published or give services catalog with best information included and with detailed service guide descriptions. The second form of support is call center. According to Margaret Rouse, a call center is where the customer and other telephone calls by the user are handled by an organization’s support team, normally with some help using a computer automation