Modern Storage Devices
There are many ways of storing information and data for use with
modern computer systems and new developments are constantly being
made. Many changes have occurred since the first personal computers
were developed, allowing a lot more information to be stored, and on
storage devices which are generally a lot smaller and easier to handle
than methods of storage previously used.
In the past two or three years, there has been a massive change in the
emphasis that has been placed on certain storage devices. Whereas 3.5"
floppy discs were practically the only commercially available storage
medium available to the public there are now many more on offer. The
biggest change has perhaps been that writeable and rewriteable CD's
are now widely available to the public. For many people, CD-R's have
now replaced the use of floppy discs, as they offer an inexpensive way
of storing large amounts of data. A typical floppy disc stores 1.44
Mb's of data, whereas a CD-R stores 650 Mb and both offer a similarly
priced product.
Some examples of modern storage mediums are:
· Mini Disc
· Tape Drive
· MP3 Card
· Hard Disk Drives
· CD ROM
· Zip Disk
· DVD
The major advances in the ability to store larger amounts of data is
not only desireable, but essential as computers become more complex
each day. As computing technology develops, much more complex
information can be stored requiring much more storage space. An
example of such information is audio and video, which can now be
stored at a very high quality. Although audio uses a lot of storage
space, it should be noted that as storage de...
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...as, hand-held PCs and other consumer electronic devices
Researchers at IBM are currently developing a new substance that could
be used in the manufacture of hard disk drive platters in the future.
Instead of using metallic film on the surface, a solution containing
organic molecules and iron and platinum particles if used on the
platters. This solution is spread out and heated. This causes the iron
and platinum particles to arrange themselves into a natural grid of
crystals, with each crystal able to hold a magnetic charge. This has
the potential to increase the areal density capability of the
recording media of hard disks by as much as 100 times. It is still in
the development stages, and advances still need to be made in the
read/write head capabilities of a hard disk before it can be put into
commercial use.
addition, more recently we have experience even greater change. There is now about ten to
Hard Disk Drive (HDD) - Hard drives can store very large amounts of data ranging from 200GB – 1TB. A hard drive is made up of a magnetic disk that consists of a number of platters/disks that are coated in a magnetic material that rotate at 7200 RPM. The data is encoded into bits and written into the disks as a series of changes in the direction of the magnetic pull, and then the data is read by detecting the changes in direction on the
society can be seen. In the late 1800’s there was a rise in the number
advocates have been awaiting a surge of public demand for change for quite some time but
...nearly impossible to track all the ways it changes, partly because it is always changing, because there is always room for improvement.
when did this trend actually begin? I do not believe there is any clear answer
last twenty years, progress has been made in many countries which has helped elevate the
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).
Past and Current Trends of Drug Abuse in the United States. Drug abuse has changed over the years due to the trends that Americans face from the encouragement of different cultures. The abuse of substances creates many health problems. The following will discuss the past and current trends in drug use and the effects these drugs have on the health of the individuals who abuse the drugs. The use of cocaine in the United States has declined over the last twenty years, while the use of crack has increased.
been diminished, but rather increased, in the course of the six centuries that have elapsed
...ased greatly over the past few years due to factors such as: high rates of poverty, income differentials, illiteracy, gendered cultural practices, discrimination and homelessness.
Live acquisition: The future of data acquisitions is shifting toward live acquisitions because of the use of disk encryption with newer operating systems (OSs). In addition to encryption concerns, collecting any data that’s active in a suspect’s computer RAM is becoming more important to digital investigations. The processes and data integrity requirements for static and live acquisitions are the same. The only shortcoming with live acquisitions is not being able to perform repeatable processes, which are critical for collecting digital evidence.
are quite evident to a casual observer, the qualitative contributions that have caused this decline are not as
are not taken as seriously as they have been. It would be safe to say,
According to Jeffrey Elton Anderson, one of the significant changes in the second half of the ...