Thursday, May 19, 2011

Examples of Communication Systems III - Electronic Commerce

pg 294
Financial transactions over an electronic network
·         ATM (Automatic Teller Machine)
·         EFTPOS (electronic funds transfer at point of sale)
·         Internet Sales
·         Internet banking

1.       For an ATM identify the collection and display devices it contains and the nature of the data they collect/display.
-display devices include the screen - often a CRT, although LCD screens are becomign popular, speaker.
- collection - magnetic stripe reader that collects magnetic information from the back of the customer's card
2.       List some possible methods of connecting an ATM to a network.
-ethernet
-data dial up modem
-
3.       For an EFTPOS terminal, identify the collection and display devices it contains and the nature of the data they collect/display.
-keypad
-magnetic stripe reader
-screen + printer -> output
4.       What protocol ensures the secure delivery of webpages during an internet banking transaction?
-HTPS & SSL
-transport layer security
5.       What is the function of server-side code indicated by the .shtml file extension of the internet banking pages?
-transmitts data to the server -> shtml webpage is customised by the server before it comes to the customer
6.       Describe three methods used to seek unauthorized access of internet banking accounts.
-Fraudulent emails
-Malicious software that records keystrokes such as passowrds and sends them to illegal operators. e.g. trojan and keystroke loggers
-Identity theft where a fraudulent person obtains sufficient information about another so that they can contact the bank, identify themselves as the other person and have the password altered.
7.       Identify some of the social and ethical implications of internet banking replacing face to face banking.
-changing nature of work
-equity and access
-age
-consulting can not be done online
8.       Define the term Virtual Business. What advantages do they offer to the business owner and customer. What concerns might customers have regarding online purchases?
-Virtual Business: employs electronic means to transact business as opposed to a traditional brick and mortar business that relies on face-to-face transactions with physical documents and physical currency or credit
-advantages : no rent, reduce overheads, flexible hours -> changing natue of work, ease of promoting, small business are able to efectively advertise on the internet.
-positives for cutomers: acces to virtual business 24/7, discounted products, product is posted to you
-negatives: reduce overheads of owner passes onto the customer, security of payments, reliability of receiving the product.
9.       Does online trading have any social or ethical implications? Explain.
- bound by fair trading
-change: flexibility
-unemployment
-retail outlets are suffering as deman for online businesses increase
-interpersonal relationship between the customer and business - customer loyalty

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