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modern storage medium
modern storage medium
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When the word “storage” is discussed as related to computers, one does not usually mean a closet or desk compartment. Storage in this sense refers to a medium to which electronic data is stored whether permanently or temporarily. In fact, the Computer Dictionary Online (2008) states that storage is, “a device into which data can be entered, in which they can be held, and from which they can be retrieved at a later time.” Several types of storage mediums exist for electronic data including hard disks, floppy disks, RAM, CD-ROM, and tape each of which have its own specific strength. The speed at which data can be retrieved from these storage mediums can also aid in determining the overall speed of a computer. Let us begin with a look at the optimal uses of each storage type mentioned above.
Hard disks are almost solely used for permanent data storage such as when a user saves a file to the “My Documents” folder; the file is saved to the computer’s hard disk. Most computers have them in one form or another. The IDE and SATA versions come in 2-½ inch for laptops and 5-¼ inch for desktops. Servers normally have SCSI drives, which are more expensive, have a longer life and are faster than IDE and SATA drives. However, the newer SATA drives are coming close to catching up with SCSI in terms of spindle speed and are starting to be used by major vendors like HP in servers. The spindle speed of IDE and SATA drives range from 4200 RPM to 7200 RPM with 7200 being the standard for most off the shelf desktop drives and 5400 for laptops. SCSI drives range from 10,000 RPM to 15,000 RPM and this high speed makes them perfect for servers that need to serve many clients at once (Gilbert, 2007). These speeds are fixed though and no matter what the clock speed of a desktop or server’s CPU, the data can only be retrieved as fast as the magnetic head can locate it on the platter. A similar principal is used by a floppy disk.
Floppy disks store their data on a “small, circular piece of metal-coated plastic similar to audio cassette tape” (Brown, 2008, para. 2). Floppies were very popular before the CD-ROM came on the scene. They were used to store software installation programs and “sneaker-netting.” Today they are still used for things like flashing the BIOS in a PC and disaster recovery situations.
12. DVDs are digital versatile disc, optical discs used to externally store data. DVDs have higher recording and retrieving speeds, are better suited for backing up information, and have higher capacity per device than
This memory is assists in allowing the computer to simultaneously read and write data at the same time. Simply put, RAM is the most common form of memory that is utilized by computers as well as other devices. There are specific types of RAM that include dynamic random access memory and static random access memory, or DRAM and SRAM respectively. These two RAM are very different in terms of how they allow data to be read and written. Dynamic random access memory is often considered the most frequent type found in computers. Static random access memory is also found in computer, and is usually referred to as the faster of the two types due to the fact that refreshing of this form of memory is not needed whereas with dynamic random access memory it is. The term RAM is often used to describe what the computer uses to function. It is the main memory or primary memory whereby all processes and software run. Since it is random access memory, it is only available at the time a certain process is needed and is not stored anywhere on the computer specifically (2007). This is what makes random access memory often confusing to understand particular since computers also have what is known as read only
of as an inner ear. It is now thought to be made up of two components
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).
The memory capacity of that time was rather limited. “There were not many external drives, the only external drives of that time were I/O cards, I cards and O cards”
Peace Pilgrim once stated, “Unnecessary possessions are unnecessary burdens. If you have them, you have to take care of them. There is great freedom in simplicity of living. It is those who have enough but no too much who are the happiest”. In today’s society, there are individuals who consider themselves materialists, prideful, rich and others not that wealthy. However, material possessions are one of the most unnecessary items that Americans people have, which sometimes could be a critical aspect that defines their identity. In fact, many people who experience such dilemma, have particularly rented self-storage room, which helps them to accumulate and save all their valuable possessions. In the article “The Self-Storage,” by Jon Moallem,
The Multistore Model of Memory The multistore model is a representation of memory based on having more than one different kind of store for remembered information. Atkinson and Shiffrin (1968) proposed this model based on evidence related to the separate stores of memory (e.g. serial position: primacy recency, forgetting etc.). It suggests that memory comprises of three separate stores, the sensory memory store, the short-term memory and the long-term memory, each store having a specific and relatively inflexible function: Information enters and is initially stored in SM which holds information for very brief periods of time if the information is not concentrated on. However, if a person’s attention is focused on material in Sensory Memory, this leads to STM storage which has limited capacity and relatively short duration.
File servers are an important part of any business. The file server is the central location of files for a business small or big. The file server can be a cloud accessible server which grants accesses anywhere. The file server can also be a dedicated server which is only used on the business network. I am going to touch on the specifications of a file server. This means I am going to go over CPU, memory, bus, DMA, storage, interrupts, input/output peripherals, and monitors of a files server.
This could be done in a number of ways. Removable media was originally the most common way this was done. Removable media could include compact disc and other removable storage devices or portable
RAID technology is a fault tolerance for avoiding hard disk failure for the Windows NT server. RAID standing for Redundant Array of Inexpensive Disks is part of Windows NT and doesn’t require additional software. There are three levels in which RAID works levels 0, 1, and 5. There are levels 2, 3, and 4 but the server does not utilize them.
Some historians are interested in the preservation of video games, but are wary, as data storage deteriorates rapidly over the years. Floppy disks are particularly challenging as they have a lifespan of only ten to thirty years. More modern video games that use cartridges, such
Ever since I have used a computer, I have been captivated by the incredible world of the digital industry. One of the earliest memories I have was to use a floppy disk, the idea of capturing something virtual and integrating it into a physical object fascinated me. As technology has advanced so has its implements, I recall the floppy disk being as big as my hand and to now hold a memory stick smaller than my thumb with 91022.2 times more storage capacity just astonishes me. The advancement of computers at this exponential rate makes me wonder what amazing phenomena could occur in the next century and by studying computer science I can be part of this exponential growth.
So if you’re a photographer or someone that is looking for storage, the best option would be to get yourself a hard disk drive, it might be slow, but you’re paying far less than a solid state drive and getting a lot more storage. The more gigabytes the solid state drive, the more it will cost as they are the new technology, and to get the newest technology, you have to pay the big bucks. On August 15, 2015, Samsung developed and released the world’s largest hard drive at 16TB, and it’s a solid state drive… I wonder how much that is going for. All in all, the hard disk drive easily wins on price, capacity and availability, whilst the solid state drives wins on speed (fragmentation), form factor, durability and
The primary computer storage medium, before the introduction of magnetic storage, was punch cards. These were paper cards on which holes were punched to indicate binary data invented by Herman Hollerith in the late nineteenth century. In June 1949, a group of scientists and engineers in IBM began working on creating a new storage device that would soon revolutionize the industry. May 21, 1952 marked the transition from punched-card calculators to electronic computers as IBM introduced the IBM 726 Tape Unit [1]. It was used to store data in IBM’s first commercial scientific computer intended to help the US military to design aircrafts [2]. Four years later, IBM made the first computer disk storage system: the 305 RAMAC drive. Although this drive could only store 5MB of data, information could be stored directly to any location on the disk surface without having to read all the information in between which was the case in magnetic tapes. This ability to access random locations had a very important effect on computer performance and enabled data to be stored and retrieved much faster than tapes. The next 60 years saw a huge progress in the magnetic storage industry from a variety of hard disks to portable memory such as cassette tapes, floppy disks and zip drives. Today, one can store even 3TB data on tiny 3.5 inch drives. This was all possible due to electromagnetism and the magnetic properties of ferromagnetic materials such as the oxides of iron[ add the magnetism part]
The hard drive is a very hefty one with almost 400 gigabytes of space. However after researching the PC closer I learned that it actually contains two 160GB drives configured with RAID 0. The two drives both run at 7,200 RPM’s which is also pretty good.