Virtual memory

Knowing the memory address of such critical files allowed malicious access at the kernel level and allowed unscrupulous program writes to take advantage of the known locations. Microsoft has implemented new memory access technology that includes Dynamic Allocation of Kernel Virtual Address Space (including paged and non-paged pools), kernel-mode stack jumping, and Address Space Layout Randomization. These changes reduce the ability of malicious program developers to take advantage of known address…

3510 Monday, May 18, 2015 Memory Management on OS X and iOS The history of virtual memory on Mac OS and its faults. Allocation and deallocation of memory through pointers The end of dealloc, retain, and release calls on iOS Automatic Reference Counting in OS X and iOS Memory management is the act of dynamically allocating memory to different programs as it is requested and freeing it when it is no longer needed. The goal of any memory management system is the reduce a program’s memory…

In the graphic novel, the Pride of Baghdad, animals were used to represent different types of Iraqis people. These animals were identified based on how they were depicted by Brain K. Vaughan and Niko Henrichon. The author and illustrator of this novel used dark aggressive colors and tones to lead the audience towards a negative vibe in a character by how they formatted, styled, and characterized the characters in the pages of the novel. The page used to support this statement is the page of the…

division by zero, attempt to execute am illegal machine instruction, and reference outside a user's allowed memory space. Timer Generated by a timer within the processor. This allows the operating system to perform certain functions on a regular basis. I/O Generated by an I/O controller, to signal normal completion of an operation or to signal a variety of error conditions. Hardware failure Generated by a failure such as power failure or memory parity error. Source: William Stallings (Date of…

We have the ability to view what we want, where we want and when we want. Media messages come in interactive forms, as advertising and public relations announcements, to name just a few. Educator and journalist, Marshall McLuhan, was extremely prophetic in ways he announced media was taking us (Marshall McLuhan, 2011). He said, “One of the effects of living with electric information is that we live habitually in a state of information overload. There 's always more than you can cope with”…

Video games, along with the study of the brain have both advanced astronomically within that past few decades. Since the creation of video games, the question whether video games hurt or help the development of a human brain has been a strong topic to research. A study headed by Gregory Clemenson and Craig Stark in 2015 attempted to see how video games and hippocampal associated memory work together. The part of the brain that this study refers to mainly is through associations of the…

Virtual Reality in Dementia For nearly a decade, virtual reality has been used in video games and military training to create an element of realism and a true environmental reaction. As the world continually becomes interconnected through technology the use of virtual reality will no doubt increase. Extra Sensory Perception, an article from Scientific American, explores how the vast network of sensors currently housed in current technology could be eventually be used as sensory prosthetics via…

version of virtual reality with you immersed inside as the star player, is the 'in-thing' in modern digital technology right now. Immersing yourself in 3-D 'what if' scenarios, ideally of your own creation - the early versions of the ultimate in Star Trek holodeck simulations - is the name of the virtual reality game. Of course you already experience virtual reality 24/7/52. Anything and everything you experience is courtesy of your sensory apparatus, your memories, and your overall state of…

I sat on my isolated park bench. The anonymous owners of those steps have no idea what I’ve been through. Do they even want to know? The remark “I could never imagine what you’ve been through” (Klay, P.) repeated itself with each clicking step, like a broken record. I felt so alone. It was another one of those days; one where my mind is enshrouded with my tragic past. I was stuck in my horrific memories that happened ages ago but felt like only happened yesterday. The daily struggle of having…

Memory virtualization is allocating additional memory from the hard drive that are being unused to a virtual machine. Server consolidation is one of the main reason for the virtualization becoming more popular. The main idea of the memory virtualization is to convert the underutilization of the hardware that are already present. This results in significant cost saving, storage space and power consumption, this also results in rapid increase in availability. Raid allows us to have a group of…