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...
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.... 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 order to adequately compare and contrast both theories, a deeper insight must be gained through a thorough analysis of
Though both of these things talk about the same basic idea, there are many differences s...
Have you ever experienced an event that was so significant to you that you felt as if your memory was taking a photograph, keeping the memory implanted in your brain for the rest of your life? This is a prime example of flashbulb memory. Flashbulb memory is a term that pertains to a person’s memory of hearing about extremely shocking events (Goldstein, 2011, p. 209). Flashbulb memory is not the memory for the event itself, but it’s the memory of how the person heard about the specific event (Goldstein, 2011, p. 209). This means that a flashbulb memory includes where you were and what you were doing when you found out about a tragic event (Goldstein, 2011, p. 209). Some key attributes of flashbulb memories are that they are both remembered for long periods of time and are exceedingly vivid (Goldstein, 2011, p. 209). A great way to describe flashbulb memories is to compare them to a photo that never fades, proving how relevant these memories are to those who have them (Goldstein, 2011, p. 209).
In their most basic and natural settings, these two concepts can simply be defined as such:
its workings was created. In both works, there is a concept of a fixed order of
The final part of this essay will be to examine the similarities and differences between the two models.
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.
way both works use and treat point of view and form, governmental systems and ideals the
...lities. Rather, the different functions exist in a hierarchy in which one will take a superior effect over the others.
a very good model for the time it was made and it is based on reliable
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.
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.
recording media of hard disks by as much as 100 times. It is still in
Primary or main memories are essential memories for computer, which basically enable computer to run. It has the data an...