Memory And Memory Of Computers - 868 Words

Memory Have you ever wanted to know how certain files, documents and so on are being saved and what led this to occur? The memory of computers is quite fascinating and there is so much that goes into saving something on a computer. There are different types of memory that is found on computers that is needed to make things work and that would be acceptable to the user. The main two that is quite known in the computer world would be Primary and Secondary memory. There are 2 types that make up the Primary memory and that would be Random Access Memory (RAM) and Read only memory (ROM). The secondary memory consists of a hard disk drive, flash drive and zip drive. There are also optical discs that are included. One thing that is special in terms of computers would be the Primary memory. Primary memory is divided into 2 types. The first type would be random access memory. RAM is in charge of keeping data in a stored area so that it can be reached by the processor when necessary. RAM does a really good job at laying away data in such a random basis. An article from the PC World have shown that in this generation RAM has increased tremendously; it is said that â€Å" A review of systems that the PC World test center has grown from a little over 90 MB to about 2 GB, spiking whenever Microsoft releases a new version of Windows† (Stafford pg. 84). RAM has 2 forms, they are Static RAM and Dynamic RAM. Static RAMShow MoreRelatedComputer Memory1614 Words   |  7 PagesComputer Memory Basics Although memory is technically any form of electronic storage, it is used most often to identify fast, temporary forms of storage. If your computers CPU had to constantly access the hard drive to retrieve every piece of data it needs, it would operate very slowly. When the information is kept in memory, the CPU can access it much more quickly. Most forms of memory are intended to store data temporarily. As you can see in the diagram above, the CPU accesses memory accordingRead MoreComputer Memory2193 Words   |  9 PagesA. VOLATILE MEMORY Volatile memory, also known as volatile storage, is computer memory that requires power to maintain the stored information, unlike non-volatile memory which does not require a maintained power supply. It has been less popularly known as term Dynamic random access memory (DRAM) is a type of random access memory that stores each bit of data in a separate capacitor within an integrated circuit. Since real capacitors leak charge, the information eventually fades unless the capacitorRead MoreComputer Memory3238 Words   |  13 PagesComputer Memory 1.Introduction: Just like humans, computers rely a lot on memory. They need to process and store data, just like we do. However, computers store data in digital format, which means the information can always be called up exactly the way it was stored. computer memory - an electronic memory device; a memory and the CPU form the central part of a computer to which peripherals are attached 1.1History of memory: In the early 1940s, memory technology mostly permitted a capacityRead MoreComputer Science : Memory Management1149 Words   |  5 Pages Memory Management Navid Salehvaziri Virginia International University â€Æ' Abstract Memory management is a field of computer science that involves the act of managing computer memory to use it more efficient. That means how the computer allocate portion of memory to programs at different levels of priority to make faster program execution regard to memory space limitation. There are many techniques that are developed to reach this goal at many levels. This article try to introduce memory managementRead MoreComputer Memory Hacking Essay908 Words   |  4 PagesComputer Memory Hacking NAME Professor CIS 106 November 20, 2014 Technology continues to evolve exponentially. However these technological advancements continue to pose a threat to both individuals and information resources of companies and governments. There is therefore the need to protect one’s data and information due to the emerging threats and risks. Hacking is where third parties create a backdoor version of a hardware and software so as to manipulate or unlockRead MoreComputer Memory Hacking Essay835 Words   |  4 PagesComputer  Memory  Hacking                      Computer  Memory  Hacking   Rebecca  M.  Shepherd   CIS  106  Intoduction  to  Information  Technology   Professor  Dima  Salman   Stayer  University  Ã‚   November  23,  2014                                 Computer  Memory  Hacking    Hacking  of  memory  or  hacking  of  RAM  describes  when  a  person  or  person(s)  gains   unauthorized  access  to  the  RAM  (random  access  memory)  of  a  computer  system.  There  a  couple   of  reasons  that  one  might  participate  in  hacking  the  memory  of  a  computer  system.  One  reason  Read MoreThe Computer Memory Interference Test Essay1356 Words   |  6 PagesIntroduction The Computer Memory Interference Test (CMIT) is a test that is designed to evaluate how memory is affected by a myriad of different variables. With results from this test, scientists are able to determine if an individual has a serious memory disorder such as Alzheimer’s, or other cognitive disorders such as Autism. This test can also determine how memory is affected by different cultures and lifestyles. This study will concentrate on lifestyle; more specifically, it will focus on theRead MoreAn Array Is Stored In A Continuous Sequential Memory Computers762 Words   |  4 Pagesrepresented in a larger format requires more complex circuitry and more time for executing the codes. Either of them will slow the program execution. 3. An array is stored in a continuous sequential memory locations. Where the first element is stored in the lowest address. Linked list is stored in memory as unordered 7 non continuous set of list element. Where each consisting of a data value and a pointer to the next data list element. Arrays Linked List Compact easier to read or write Not compactRead MoreComputer Security : Memory Controlr Overflow731 Words   |  3 Pagesbuffers, or memory allocations exploits eventually giving the attacker full control over a compromised system. This takes place when a process or programme writes or attempts to write data onto a static sized memory block than it was initially allocated. By taking advantage of the buffer overflow attacker are always aiming to completely take control of the whole system by elevating their privileges to the Admin rights. To successfully attain this they identify a function pointer in memory that theyRead MoreEffects Of Computers On Memory : Cognitive Consequences Of Having Information At Our Fingertips1045 Words   |  5 PagesEffects on Memory: Cognitive Consequences of Having Information at Our Fingertips†, was written by Betsy Sparrow, Jenny Liu, and Daniel M. Wegner. The article was published in Science Magazine. The readers that the author intends to reach are people in the science field, or those interested in knowing more about how computers can affect the brain, specifically cognitive abilities. The purpose of the author’s writing this article is to inform readers about the effects computers have on memory and how

Colorectal Cancer The Third Most Common Type Of Cancer

Introduction Colorectal cancer (CRC) is ranked as the third most common type of cancer in women. Furthermore, it is the fourth most dominant kind of cancer in men recorded all over the world. Consequently, CRC accounts for over a million new cases and more than half a million deaths every year. Colonoscopy allows early discovery and removal of precancerous lesions and may, therefore, effectively prevent or reduce the risk of Colorectal cancer. Although studies under hugely standardized conditions have shown that colonoscopy is linked with a 76% to 90% risk reduction of colorectal cancer in individuals with colorectal polyps, its effectiveness in preventing this type of cancer, especially in the community environment, is not clear. The aim†¦show more content†¦Biases The main bias noted in the research investigation was the selection of the respondents, which had limitations and restrictions on age, sex, and previous colonoscopy results. Essentially, such considerations ended up biasing the research investigation. Confounding The study had a higher possibility of a residual confounding bias because the measure of association between the use of previous colonoscopy results was bound to be mixed up other factors under investigation that could not give an opportunity for getting the most accurate results. In this study, the conclusions indicated that risk reduction of colorectal cancer was observed for both the right-sided and left-sided colon cancer. Methods Study Design, Sample, and Population. The study employed a case-control and population-based design that was carried out in the Rhine-Neckar region in the southwestern part of Germany that has a population of more than two million individuals. Initially, the study required eligible patients aged 30 years or older, had experienced their first diagnosis of invasive primary colorectal cancer, were able to communicate in German, and were mentally and physically capable to participate in the study. The report of the study was based on an enormous number of control patients (n _ 1945) and case patients (n _ 2399) who were recruited from January 2003 to December 2007. Furthermore, a total of 22

Microbiology and Unknown Bacteria Lab Free Essays

Unknown Bacteria Lab Report Introduction The purpose to this lab was to identify an unknown bacteria from a mixed culture provided to us by our instructor. This study was done by applying all of the methods that have been instructed on thus far in microbiology laboratory class. Each test performed, provided us with some key information about the unknown organism in question and how the bacteria function. We will write a custom essay sample on Microbiology and Unknown Bacteria Lab or any similar topic only for you Order Now Over a two week period, eight prepared types of test media were provided to identify the assigned unknown mixed cultures. Not all of these tests were performed on every culture, as some were used only for gram positive or gram negative bacteria. The tests performed and what constituted a positive or negative test are as follows: Lab day 1; today in lab we obtained the unknown mixed culture â€Å"041†and one brain-heart infusion agar (BHIA). The first step was the preparation of the medium, the bottom of the BHIA dish was labeled with the bacterium number, initials, and section; then divided into four quadrants. The second step, we used the septic technique to transfer a small amount of culture with a flame-sterilized inoculating loop to the first quadrant, flamed and cooled the loop again then transferred a small amount of the culture from the first quadrant to the second using the quadrant streaking method as illustrated on page 18 of the lab manual, repeating this process until all four quadrants were properly streaked. Lab day 2; we collected our BHIA medium and began by identifying the morphology and cell-to cell arrangements of the colonies. Two different colonies were observed, the first colony was yellow in color and larger in size and the white colored colony was slightly smaller in size. As instructed, each colony was prepared for gram staining, one slide for the large yellow colony and one for the smaller white colony. After properly gram staining the slides as directed in chapter six of the lab manual, the smears were examined under†¦ How to cite Microbiology and Unknown Bacteria Lab, Papers