The Different Types of Memory Devices
This technical report will look at various different memory devices
and how they are implemented in a standard computer system. Internal
memory devices such as ROM, PROM, RAM, SRAM, DRAM, SIMM and DIMM will
be looked at in order to give a clear idea of how each one operates,
and external devices such as memory sticks will also be touched upon.
Each of these devices uses different types of memory in different
ways. Over the course of this report, each of the aforementioned terms
will be technically defined and reasons will be established as to why
there are so many memory devices within a standard computer system.
Memory Devices
Technically, memory is electronic storage of any capacity; however, it
is increasingly being used to identify temporary forms of storage. If
the CPU in a standard computer system was to frequently access the
hard disk drive for data retrieval, it would operate very slowly. On
the other hand, if this much-needed data was stored in memory, not
only would it be easier to access, but the CPU would also be able to
access it much more quickly. Data that is stored in memory is
generally only kept there on a temporary basis.
The term “memory” identifies data storage that comes in the form of
silicon chips, and the word “storage” is used for memory that is
stored on disks or tapes. Moreover, the term “memory” is usually used
as shorthand for physical memory, which refers to the actual silicon
chips capable of carrying data. Some computer systems also have what’s
called “virtual memory,” which expands physical memory onto a hard
disk.
Read-Only Memory
The firs...
... middle of paper ...
.... Internal memory devices such as RAM, ROM (and all the
branches of ROM), SIMM’s and DIMM’s are requisites of a computer
system. Without such memory devices, a computer system cannot function
and there would be no storage medium to hold temporary data and data
which instructs the operating system function correctly. External
memory devices such as Memory Sticks and Flash Memory devices have
become a way of replacing their predecessors (i.e. floppy disk and
CD-ROM), and are not really required by a computer system in order for
it function correctly. They are mainly used as a convenience and as a
way of transferring data from one medium to another with minimal
hassle. Such devices have also been incorporated into multimedia
devices such as MP3 players and digital cameras, a “craze” which is
becoming increasingly popular.
(In the sources cited, I could pick a few sentences from each and claim them as my own to make a splendid presentation. But they are not my own, and the question is pretty simple as is the answer. I could also research this for hours upon hours, as I have been known to do, and surely make it my own. This time, I will follow the advice one of my instructors said to his class here at CCC: “Keep it simple, stupid”).
Though both of these things talk about the same basic idea, there are many differences s...
What do events like the assassination of John F. Kennedy, The Challenger space shuttle disaster, and hurricane Andrew that shook Miami have in common? All these events can be remembered by the people who experienced it due to flashbulb memory. Flashbulb memories were defined by R. Brown and J. Kulik (1977) as vivid, detailed, and long-lasting memories for attributes of the reception context of public news (Curci, A., & Lanciano, T., 2009). The people who experience such huge events are certain that their flashbulb memories are very accurate and can give in detail what occurred to them in those events (Schwartz, 2013). Furthermore events that generate flashbulb memories are usually very surprising and emotionally arousing and are perceived by the subject as personally consequential (Emotion & Memory 1993). But not all memories need to be negative and tragic. Events like the first day of first grade, your first romantic kiss, your first day at a new job, or recital of your wedding vows can also be described as flashbulb memories (Schwartz, 2013).
In their most basic and natural settings, these two concepts can simply be defined as such:
Inaccurate memories can happen to anyone even when they believe it truly happened. One might think that there is only one type of memory but that it not the case. When Jim thinks that he remembers something but actually does not, the memory he thinks he remembers would be categorized under flashbulb memories. Usually, it is a flashbulb memory of a childhood experience. These memories are actually very similar to regular memories.
a very good model for the time it was made and it is based on reliable
...lities. Rather, the different functions exist in a hierarchy in which one will take a superior effect over the others.
Flashbulb memory is when a person learns or experiences a very surprising and emotional arousing events (Matlin, 155). As it is a long lasting memory that people report vivid details about a traumatic event, it has been the subjects of recent scientific studies. Recent findings have mentioned a relationship between flashbulb memory and the September 11, 2001 attack. An article published in the American Psychological Association entitled “Seared in Our Memories” written by Bridget Murray Law analyzes different studies on the topic to explore how accurate people vividly remember about the 9/11 attack, and on how much is accurate or fabricated through various encounters. After reading the article, Law mentions interesting researchers concluding
I. Introduction II. Dementia Senility is a misused term for the loss of ability to think, reason, and remember in older persons. Senility is not a medical condition; it is not normal, natural, or inevitable with aging; it is not limited to older people either. The term senility is replaced in most of my pertinent research by the medical term dementia, which seems to describe a group of symptoms that represent a change or deterioration from an individual's previous level of functioning (Tueth, 1995). Dementia has specific causes, which impair long-term memory and quite relevantly;: language, judgment, spatial perception, behavior, and often personality, interfering with normal social and occupational functioning.
I believe it is important to differentiate these concepts, plus examine how they are intertwined.
The final part of this essay will be to examine the similarities and differences between the two models.
According to Sternberg (1999), memory is the extraction of past experiences for information to be used in the present. The retrieval of memory is essential in every aspect of daily life, whether it is for academics, work or social purposes. However, many often take memory for granted and assume that it can be relied on because of how realistic it appears in the mind. This form of memory is also known as flashbulb memory. (Brown and Kulik, 1977). The question of whether our memory is reliably accurate has been shown to have implications in providing precise details of past events. (The British Psychological Association, 2011). In this essay, I would put forth arguments that human memory, in fact, is not completely reliable in providing accurate depictions of our past experiences. Evidence can be seen in the following two studies that support these arguments by examining episodic memory in humans. The first study is by Loftus and Pickrell (1995) who found that memory can be modified by suggestions. The second study is by Naveh-Benjamin and Craik (1995) who found that there is a predisposition for memory to decline with increasing age.
way both works use and treat point of view and form, governmental systems and ideals the
Primary or main memories are essential memories for computer, which basically enable computer to run. It has the data an...
recording media of hard disks by as much as 100 times. It is still in