Saturday, March 30, 2013



CELL PHONE TETRAD (BLOG POST)
Toni Duke, EDUC 8848 Module 2




This week, April 3, 2013, marks the 40-year anniversary of the first cell phone!

Enhancement/Extension: The establishment of the cell phone enhanced communication from far-away places. Prior to the invention of the cell phone, people had to travel far to reach one another to communicate. The use of today’s cell phone has greatly improved cost of use. After the initial costly purchase of a cell or smart phone today, one can talk for a fraction of the cost of those in the 1970s and 1980s.

Obsolete: The cell phone reduced the need for people to travel to communicate. Today’s smartphones reduce the need to carry many devices (i.e. calculators, address books, calendars, grocery lists, mp3 players, cameras, etc.), as the phones of today contain all of these features – and more…and if they don’t, there are apps that allow all of these methods of productivity – and some!
Retrieval: The cell phone of today rekindles the ability to speak to another person from a far distance, and to take long trips to visit in order to enjoy a face-to-face conversation, as the smartphones of today provide the ability to see others’ faces as we enjoy conversations through add-on services, and apps like Skype, Tango, etc.
Reversal: The establishment of cell/smartphones has set the tone for the creation of many more capabilities to improve productivity for personal and business use.


As early as the 1930s travelers could place phone calls from and to ocean liners in the middle of the Atlantic Ocean. The process was driven by Marine VHF Radio and cost $7 a minute (roughly $100 a minute when adjusted for inflation to today’s money).
The first fully automated mobile phone system for vehicles was launched in Sweden by TeliaSonera and Ericsson in 1956. Named MTA (Mobile Telephone system A). This was the first time calls could be made and received in the car while using the public telephone network.

April 3, 1973, Martin Cooper, a Motorola researcher and executive, made the first mobile telephone call from handheld subscriber equipment. The prototype handheld phone used by Dr. Cooper weighed 2.5 pounds and measured 9 inches long, 5 inches deep and 1.75 inches wide. The prototype offered a talk time of just 30 minutes and took 10 hours to re-charge” (Netprolive, n.d.).

Social twist: I purchased my first cell phone, a large phone-in-a-bag, in the early 1990s. I thought that was the first of the cell phone. Knowing what I know now about tetrads and the realization of technology, I would have been able to identify those that came before mine, and how much they had improved – both in cost and design. I recall vividly one of my close friend’s acquisition of the large, white cell phone that he carried everywhere. Socially, it was a sign of being “established” or “wealthy”, because not everyone could afford the phone nor the air time (or talk time, as we refer to it today).

References:



Netprolive (n.d.). World’s first in technology: The first cell phone. Retrieved from http://www.netprolive.com/cellphones.php

Thornburg, D.D. (2008). Emerging Technologies and McLuhan’s Laws of Media. Lake Barrington, IL: Thornburg Center for space Exploration.

Tuesday, March 12, 2013

From limited capacity flash drives to storage of any information in the cloud (EDUC 8848, Spr '13)

Toni Duke


The challenges of the “pen drives”, a type of flash drive that Thornburg (2009) refers to, are one reason why that type of file storage technology is about to expire. At the time of Thornburg’s 2009 article,  the challenges of the pen flash drive storage devices had a high cost, limited storage capacity, and a limited life (“number of read/write cycles”) (Thornburg, 2009, p. 4). In addition to those cited limitations, the need to physically keep up with and carry all of one’s important information, photos, music, etc. with them limits the reliability of a flash drive, not to mention the opportunities for corruption and breaking. Now, 4 years later, the cost has drastically decreased, the storage capacity has drastically increased, and the number of read/write cycles is seemingly unlimited. (I have used a 16GB flash drive for the past 4 1/2 years, throughout my doctoral studies, and it is still going strong...although I often utilize my cloud storage.)

When educators consider all of the pitfalls of dealing with issuing information on flash drives, the growing use of cloud storage becomes a more attractive, productive use for storage options. There are several cloud storage options available – most of them free for a limited amount of storage. (See list posted to right for Top 10 recommended storage sites). The benefits of a cloud storage account are convenience, portability, and ease of use. Users are able to access any personally stored information, pictures, music, etc. from any computer, tablet or smartphone with internet access.

Strickland discusses the potential problems or challenges of utilizing a cloud storage alternative as “reliability and security” (Strickland, n.d.). If the cloud storage companies are not able to maintain safety and security of customers’ information from hackers and data encryption, they will not be in business long as there are several companies competing for their customers. The only improvement I would recommend for the cloud technology industry would be the security feature, and the continuance of free storage space to users who refer additional customers, as offered by Dropbox.

References:

Cloud storage finder (n.d.). Retrieved from http://www.cloudstoragefinder.com/

Strickland, J. (n.d.). How cloud storage works. Retrieved from               http://computer.howstuffworks.com/cloud-computing/cloud-storage3.htm

Thornburg, D.D. (2009). Current trends in educational technology. Lake Barrington, IL: Thornburg Center for Space Exploration.