Friday, July 8, 2011

ACN112Act3 the web browser

1. What is the Web Browser?? And how does it work??
= A Web browser is a software program that interprets the coding language of the World Wide Web in graphic form, displaying the translation rather than the coding. This allows anyone to browse the Web by simple point and click navigation, bypassing the need to know commands used in software languages..
And it works to program the or to interpret, and to display the translation of how to code an any language of the world..

2. What is bookmark??
= Is a page keeper. A reader inserts a bookmark into the pages of a book when he or she stops reading. This way when it's time to read again, the reader can open the pages where the bookmark is to find the place in the book where he or she left off at rather than trying to remember the page number. Bookmarks save having to flip through the book and read sentences trying to find the exact place to re-start reading the book. A bookmark can be made from many different materials from a simple piece of cardboard to a specially made plastic clip to an ornately embellished fabric creation. Bookmarks may be mass produced and sold in stores or may be hand made.

3. What is the purpose of a web [browser] cache?
= The purpose of the web cache is to stores copies of online files passing through it; subsequent requests for the same files may be satisfied from the cache if certain conditions are met, rather than being re-downloaded each time. Web caching can help organizations increase responsiveness of web applications and save bandwidth costs.

4. What is a web [browser] plugin?
=  Is used as a mechanism to get new people using a squeakland. In general, the browser plugin allows you to insert Squeaky interfaces into the middle of web pages, the same way that Java applets can be. Thus they smooth the transition from klunky, static web pages into the dynamic world of Squeak.

5. Choose three types of web browsers and answer the following questions for each browser.
1. How do you enable tabbed browsing? private browsing?
=To enable Private Browsing in Firefox 3.5, click on the tools menu and select Start Private Browsing or use the keyboard shortcut CTRL +SHIFT+ P. You will be prompted with a warning message on whether you want to start private mode.
2. How do you set homepages?
=for example to set in a mozilla firefox is to open the firefox and just click the options and then, click on the general tab. And after that just change the option when the firefox starts and it will shown the “Show my homepage” and below the home page column just enter the site’s what you want to open the firefox is opened. each in the same line separated by a ‘l’ (pipe)
Like for example;http:www.facebook.com/lhttp.www.google.com
Then just click ok and next time you open firefox your multiple multiple homepages will be opened.
3. How do you customize search providers?
=Address bar search is the feature that allows you to search for a keyword entered in the address bar (location bar) without entering the search engine homepage. Firefox by default will look for the keyword entered in the address bar in Google search as it is usually set as the default search engine to manage address bar keywords. How ever, you might want to change it to suit your personal interest. It may sometimes can also be a case of hijacking: You install some programs that they change your search bar address bar search provider without asking for your permission example: so many toolbars like Alexa, Yahoo etc.. For some reasons, if you want to change the Firefox address bar search provider, you can do it by following the steps below:
4. How do you bookmark a page? How do you organize your book marks?
·         =Choose Organize Favorites from the Favorites menu.
·         2 In the box that appears, click on a site that you want to move to a folder.
·         3 Click on Move to Folder.
·         4 Click on the folder you want, then click OK.
·         5 Click on Create Folder in the Organize Favorites box if you want to make a new folder. A new folder appears in the list.
·         6 Type in a folder name.
·         7 Click Close when you're finished moving favorites and creating folders.
·         Netscape Navigator
·         1 Open the Bookmarks menu and choose Go To Bookmarks.
·         2 Drag a bookmark to a new folder.
·         3 To make a new folder, right-click a bookmark and choose Insert Folder
·         4 Type a name for the folder and click OK.
5. How do you clear the cache?
=at the top of the firefox window and click on the firefox buttons tools  menu inwindows xp and then click the options and after that just select the advanced adjust panel and  click on the network tab. And after that  in the offline storage section, click clear now.
6. How do you install a plugin?
=Navigate to the plugin manager. php page, click browse, locate the plugin you downloaded on your PC and click upload. Once the plugin has been uploaded, click on the (i) icon to install it. Follow any setup instructions provided by the plugin's installer.
7. How do you save pages offline?
=Saving Web pages for offline use can be useful if you suddenly get disconnected from the Internet or if you want to view Web pages for work, school or recreational purposes when your Internet access isn't available. Storing pages offline places a copy of the page on your hard drive so that you can view it from your default browser when you're ready. You can save Internet pages for offline purposes in many of the major Web browsers, such as Internet Explorer and Mozilla Firefox

Friday, July 1, 2011

ACN112.Activity2 the internet

                                        "Impact of the Internet in our world today"

=Last time, I spent several hours on internet but did not realize how much time I had spent when I got up. I begin to think whether the time spent on it was useful: I had seen a lot of information and pictures but much of it was not very useful to me in my life. May be I would have been better off reading a book that I recently bought. But the internet gets a lot of suffers, people who spend time on it blogging, trading, exploring information, researching or social networking. It looks exciting and attractive. Above all facts, the truth is that internet is virtual. I fear that we may slowly have people who spend their entire time staring at computer screens, who live in their make-believe world. Unrestricted information may result in our cultural identity being destroyed. This may lead to cultural erosion.
One can easily access news, audio, video and graphics on net. Since one can get anything that one wants on a computer screen but I would like to say that one should not fear about cultural erosion. How long can we take refuge on censorship? Easy access to information is a boon and we may become more modern in our approach, discarding the negative things in our culture that hold us back. We Indians really have a wrong sense of protecting our culture. What is the harm in becoming like the world? If we exhibit narrow, parochial ways, we may lose out on developments taking place in the world. Today, Internet has its own advantages. It has grown to lakhs of folds as it was seen ten years ago. But whatever be its blessings, its negative impact can’t be ignored. This is the real danger, but the answer lies in using the technology possibility.
If all the bad impacts of internet are curbed then there is no harm in embracing it. Instead, let us look at new technologies and find ways how they will help us. Culture, in any case, is not static. It has changed in the past and it will continue to change in the future also. Can we afford to stand in a time warp and feel proud of our culture? It would be better to take part in the momentous challenges that technology brings forth. There is a phrase, "if you can't beat them, join them". Well, we can't beat the advancement of technology. So let’s join the progress and stop looking back. The cultural police may try to impose their own views upon us and would like us to go the Taliban way. It is our good fortune that good sense prevails in the end and we are not pushed into the eighteenth century by those who see a cultural invasion in everything...
                        
                                 Give a brief desription of the following Internet organizations
                         
1.ISOC=is a unit of the thai military devoted to national security issues. It was responsible for suppression of leftist groups during the 1970s and 1980s during which it was implicated in numerous atrocities against activists and civilians.
2.IAB=is a committee charged with oversight of the technical and engineering development of the Internet by the Internet Society..
3.IESG=is a body composed of internet engineering task force..
4.IRTF=is a research organization working on topics related to the evolution of the Internet.
develops and promotes Internet standards cooperating closely with the W3C and ISO/IEC standards bodies and dealing in particular with standards of the TCP/IP and Internet protocol suite. It is an open standard organization.
5.IANA=is an organisation that oversees IP addresses,top level domain and Internet protocol code point allocations.
6.interNIC=is a internet governing body primarily responsible for domain name and IP address allocations from 1972 until September 18, 1998 when this role was assumed by the internet corporation for assigned names and numbers ICANN. It was accessed through the domain name internic,net with email, FTP and World Wide Web services run at various times by SRI, Network solution,inc and AT and T...
 7.ICANN=as helping preserve the operational stability of the Internet, to promote competition, to achieve broad representation of global Internet community, and to develop policies appropriate to its mission through bottom-up, consensus-based processes..
                                   
 1.What made the internet reliable and efficient?
2.What principles applied in the Internet that could also be beneficial in other areas?
             
In your own words, explain the TCP/IP Protocol Suite (Internet Model). Minimum of 250 words,  500 maximum.
= is the basic communication language or protocol of the Internet. It can also be used as a communications protocol in a private network either an Internet or  Extranet. When you are set up with direct access to the Internet, your computer is provided with a copy of the TCP/IP program just as every other computer that you may send messages to or get information from also has a copy of TCP/IP. TCP/IP is a two-layer program. The higher layer, Transmission Control Protocol, manages the assembling of a message or file into smaller packets that are transmitted over the Internet and received by a TCP layer that reassembles the packets into the original message. The lower layer IP, handles the address part of each packet so that it gets to the right destination.Each gateway computer on the network checks this address to see where to forward the message. Even though some packets from the same message are routed differently than others, they'll be reassembled at the destination.
Many Internet users are familiar with the even higher layer application protocols that use TCP/IP to get to the Internet. These include the World Wide Web's Hypertext Transfer Protocol http, the File Transfer Protocol (FTP), Telnet which lets you logon to remote computers, and the Simple Mail Transfer Protocol SMTP These and other protocols are often packaged together with TCP/IP as a "suite."
Protocols related to TCP/IP include the User Datagram Protocol UDP, which is used instead of TCP for special purposes. Other protocols are used by network host computers for exchanging router information. These include the Internet Control Message Protocol ICMP, the Interior Gateway Protocol IGP, the Exterior Gateway Protocol (EGP), and the Border Gateway Protocol BGP.