Wednesday, 31 January 2018

Areas of Computer Ethics

What is Computer Ethics?


The moral guidelines that govern the use of computers, mobile devices and information systems.

Areas of Computer Ethics


  • Information accuracy
  • Green computing
  • Codes of conduct
  • Intellectual property 
  • Information privacy


1. Information Accuracy :



  • One of the concern because many users access information maintained by other people or companies, such as on the Internet.
  • Do not assume all the information on the Web is correct.
  • Users should evaluate the value of a Web page before relying on its content.
  • Be aware that the organization providing access to the information may not be the creator of the information.
2. Green Computing :


  • Green computing is the environmentally responsible and eco-friendly use of computers and their resources. In broader terms, it is also defined as the study of designing, manufacturing/engineering, using and disposing of computing devices in a way that reduces their environmental impact.
  • Involves reducing the electricity and environmental waste while using a computer.
  • Society has become aware of this waste and is taking measures to combat it.
  • Some of the actions that has been taken:
    • Using energy- efficient devices that require little power when   they are not in use.
    • Buy computers with low power consumption processors and power supplies
    • When possible, use outside air to cool the data center.
  • Average computer users can employ the following general tactics to make their computing usage more green:
    • Use the hibernate or sleep mode when away from a computer for extended periods.
    • Use flat-screen or LCD monitors, instead of conventional cathode ray tube (CRT) monitors.
    • Buy energy efficient notebook computers, instead of desktop computers.
    • Activate the power management features for controlling energy consumption.
    • Turn off computers at the end of each day.
    • Refill printer cartridges, rather than buying new ones.
3. Codes of Conduct :
  • Written guideline that helps determine whether a specific action is ethical/unethical or allowed/not allowed.

4. Intellectual Property :


  • Unique and original works such as ideas, inventions, literary and artistic works, processes, names and logos.
  • Or, refers to creations of the mind: inventions, literary and artistic works, and symbols, names, images, and designs used in commerce.
  • Intellectual property rights are the rights to which creators are entitled for their work.
5. Information Privacy :


  • Definition : The right of individuals and companies to deny or restrict the collection, use, and dissemination of information about them.
  • The privacy of personal information and usually relates to personal data stored on computer systems.
  • The need to maintain information privacy is applicable to collected personal information such as medical records, financial data, criminal records, political records, business related information or website data.
  • Information privacy is also known as data privacy.
  • Today, huge databases store their data online.
  • Much of the data is personal and confidential and should be accessible only to authorize users. 
  • Many individuals and organizations, however, question whether this data really is private. 
  • That is, some companies and individuals collect and use this information without your authorization.
  • Web sites often collect data about you, so that they can customize advertisements and send you personalized e-mail messages.
  • Some employers monitor your computer usage and e-mail messages




Rules of Netiquette

What is Netiquette? 



  • Netiquette, or net etiquette, refers to etiquette on the Internet.  
  • Is the code of acceptable behaviours users should follow while on the Internet or online or cyberspace.
  • It is the conduct expected of individuals while online.
  • Rules for all aspects of the:
    • World Wide Web
    • E-mail
    • Instant Messaging
    • Chat rooms
    • Newsgroups & message board.
  • Electronic communication lacks the facial expression, gestures and tone of voice to convey your meaning. It’s easy to misinterpret meaning of words.
  • Remember, when you communicate through cyberspace your words are written. 
  • Chances are they're stored somewhere and they can come back and haunt you.
  • Any message you send could be saved or forwarded by its recipient. You have no control over where it goes.
  • When you enter a domain of cyberspace that's new to you, take a look around and spend a while listening to the chat or reading the archives. 
  • Get a sense of how the people who are already there act, then go ahead and participate. 
  • Don’t expect instant responses to all your questions and don't assume that all readers will agree with or care about your passionate arguments.

When do these rules apply?


Anytime when you are using…
  • Chatting online
  • Using email
  • Posting to a discussion
  • Blogging
  • Playing online games
  • Social media
  • Using web
  • Internet messaging
  • FTP
Netiquette Guidelines for Online Communications


Wednesday, 24 January 2018

Internet Service

Assalamualaikum wbt.
So, i'll continue my sharing about computer science as usually. :)
And today, the topic is about 'Internet Service and Type of Web Sites'.

Web Searching

What is Web Searching?


  • A primary reason that people use the Web is to search for specific information, including text, pictures, music and video.
  • The first step in successful searching is to identify the main idea or concept in the topic about which you are seeking information.

Types of Search Tool :


1. Search Engine :


  • Helpful in locating information for which you do not know an exact Web address or are not seeking a particular Web site. 
  • A search engine is helpful in locating items such as:
    • Images
    • Audio
    • Videos
    • Publications
    • Maps
    • People or Business
    • Blog
  • A program that searches documents for specified keywords and returns a list of the documents where the keywords were found.
  • Requires the users to enter a word or phrase, called search text or search query.
  • Each word of the search text is known as keyword. 
  • Result of the search is called hits.
  • Result  from the search engine can be in the form of:
    • web pages
    • articles
    • Images
    • Audio
    • Video and etc.
2. Subject Directory :

  • Subject directory – classifies Web pages in an organized set of categories such as sport or shopping and related subcategories. 
  • Examples of search tools:
    • AltaVista
    • Yahoo!
    • Google
    • Excite
  • A subject directory provides categorized lists of links arranged by subject.
  • When click on the category link, the subject directory displays a list of subcategory links.
  • The disadvantage – users have difficulty deciding which categories to choose as the menus of links presented.

Web Page Navigation




What is Tab Browsing?



  • Most current web browsers support tabbed browsing
  • Tabbed browsing allows you to open and view multiple Web pages in a single Web browser windows