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Issues related to Communications Systems
9.3.6 issues related to communication systems
Students learn about:
Students learn to:
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|security issues for communications systems|| In various communications systems, there are multiple security issues.|
Some of these issues may include:
- Interception of data and information.
- Outside access to a users computer, via interference.
- Sharing of virus' throughout connected systems.
|globalisation issues for communications systems|| Consider the impact of the Internet.|
Check this visualisation (SuperPower: Visualising the internet) of the Internet in terms of numbers using it and where (from the BBC)
|changing nature of work issues for communications systems|
|interpersonal relationships issues for communications systems|| |
|e-crime issues for communications systems|| E-crime or computer crime is a form of crime where computers are used as a medium to commit crime. Some of the issues that are involved in e-crime are:|
|virtual communities issues for communications systems|
|current and emerging trends in communications|
| || Blogs is short for web log, which is basically a journal that is made public by placing it on the internet. The composer of the blogs can regularly update their blog to express their opinion of personal view on issues, it act simply as a diary which describes their day to day lives. They mostly placed in date order with the latest post on top to provide a chronological order which is easily followed by an audience.|
| || A wiki is a website where users are able to freely add new content and edit existing content. The term wiki comes for a Hawaiian phrase "wiki wiki" which means "super fast", the implication being that the amount of content grows rapidly due to the large number of authors. Wikipedia is the largest and most famous wiki in the world, but due to the fact its open to the public and edited by the public, the information shouldn't be taken as face value.|
| || RSS (Rich Site Summary) is a format for delivering regularly changing web content. Many news-related sites, weblogs and other online publishers syndicate their content as an RSS Feed to whoever wants it. RSS solves a problem for people who regularly use the web. It allows you to easily stay informed by retrieving the latest content from the sites you are interested in. You save time by not needing to visit each site individually.|
| || A “podcast” is a buzzword to describe a very simple concept: an audio or video file available on the Internet for you to listen to and/or watch. A podcast can also refer to a series of these audio or video files (similar to how a TV or radio “show” can be a series of shows or just one show). When using the word “podcast”, most people refer to the entire series and not just one audio or video file.|
| ||Video on demand (VOD) is a method of showcasing streaming videos. Streaming videos are viewed as they are being delivered, similarly to radio and television. With VOD, the video is derived from a main server or network and viewed on a television or computer screen.|
| || Third generation mobile phone technology or 3G is an extension of 2G. 3G operates on a different radio frequency to 2G, allowing better clarity and access to global roaming between 3G networks. 3G offers a higher data rate transfer than 2G, has a greater capacity than 2G and is also capable of operating on 2G networks. 2G was designed for slow transmission, with simple voice data being its main function. 3G is built for speed and versatility.|
| || "Social Networking in Plain English" introduces the basic ideas behind Social Networking. The video focuses on the role of social networking in solving real-world problems. The video includes: |
| || "Twitter in Plain English" introduces the popular micro-blogging service Twitter. The video focuses on Twitter's ability to connect people in new ways, using short messages. The video includes: |
| ||Web 2.0 - Wikipedia, the free encyclopedia|
|the use of communication systems to share knowledge, not just data|| Thanks to the Internet, information sharing is no longer limited to snail mail or phone calls. The Internet has provided instant information sharing that can be performed all over the world on any day or at any time.|
The Internet allows you to send email to friends and family. They no longer have to wait for snail mail. They will receive your message in a matter of seconds.
FTP, or File Transfer Protocol, allows you to transfer your files via the Internet. File-sharing programs found on instant messengers use this technology. This technology is also found inside all Windows operating systems.
Facebook and MySpace
Thanks to the creators of Facebook, you can upload digital photos to share with your friends. On MySpace, you can upload videos that can be seen by your friends or anyone on the site.
Company Information Systems
With company information system designs, such as a WAN network, you can share information within your company at different locations. All you need to do is save the information to the network that can be transferred over the Internet. It can be received by employees who have clearance to access that area of the company's network.
Management Information Systems
MIS, or Management Information Systems, can be installed into a company website. These systems can update records stored in the embedded database, receive payments and ship sales to customers.
|issues related to messaging systems|| |
| implications of Internet trading - eTrade || The increase of eTrading has had some important implications: |
|trading over the Internet and its commercial implications|| |
|the difficulties of censoring content on the Internet|| There's no denying that the Internet contains a lot of material that most parents wouldn't want their children to see. Whether it's pornography, hate speech, chat rooms or gambling sites, many parents worry that their children will be exposed to negative or even dangerous content. While some opponents of censorship may feel that parental supervision is the best way to keep kids safe online, many parents point out that it's difficult -- if not impossible -- to oversee a child's access to the Internet all the time. Many parents turn to software and hardware solutions to this problem. They can purchase Web filtering programs like Net Nanny or CYBERsitter to block access to undesirable Websites. These programs usually have a series of options parents can select to limit the sites their children can access. These options tell the program which filters to enable. For example, CYBERsitter has 35 filter categories, including pornography and social networking sites. Most Web filters use two main techniques to block content: Blacklists and keyword blocking. A blacklist is a list of Web sites that the Web filter's creators have designated as undesirable. Blacklists change over time, and most companies offer updated lists for free. Any attempt to visit a site on a blacklist fails. With keyword blocking, the software scans a Web page as the user tries to visit it. The program analyzes the page to see if it contains certain keywords. If the program determines the Web page isn't appropriate, it blocks access to the page. |
|issues arising from Internet banking|
| ||Internet banking uses the http protocol together with SSL(Secure Sockets Layer) or TLS(Transport Layer Security) protocols. SSL and TSL operate within the OSI transport layer just above TCP. Both these Communication Control and Addressing Level protocols use public key encryption to ensure the secure delivery of data in both directions.|
| ||Electronic communication systems have changed the way many people work and where they complete their work. For many the use of electronic communication systems is required. Communication systems have allowed access to their work and from home and virtually any other location with access to the internet.|
| ||Because of electronic banking the need and demand for branches and staff in these branches to access your money has plummeted. This means that the jobs that were once available in these branches, no longer exist. It also has forced a lot of branches to close because the banks no longer needed them.|
|the removal of physical boundaries by enabling|
| ||Its difficult to determine the real nature and location of online businesses. A single person can setup a website that appears to represent a large corporation. Such businesses can be setup quickly and they can be dissolved just as quickly. The legal safeguards available in Australia are not present in many other countries. In general Australian law does not apply to international transactions.|
| ||Virtual organisations and communities are created as needs arise. Some are based on common areas of interest, to collaborate on a particular project or to form relationships. Participants in such organisations are largely honest and genuine, however in many cases ethical behaviour cannot practically be enforced.|
| ||Most people speak just one language. As a consequence we seldom communicate with those who speak a different language. This greatly restricts our ability to understand and empathise with other cultures despite the removal of physical boundaries.|
|need for ethical behaviour when using the Internet|
|the ethical issues that have arisen from the availability on the internet of material normally restricted|
|the ethical issues that have arisen from electronic commerce|
|the ethical issues that have arisen from domination of content and control of access to the Internet|
|the ethical issues that have arisen from the changing nature of social interactions|
|issues associated with the use of teleconferencing systems|
|issues associated with the use of messaging systems|
| issues associated with the use of |
|issues associated with the use of EFTPOS|
|issues associated with the use of electronic banking|
|predict developments in communication systems based on current trends|
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