Searching & Saving Web Resources ADE100- Computer Literacy Lecture 23.

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Presentation transcript:

Searching & Saving Web Resources ADE100- Computer Literacy Lecture 23

Knowledge test List some applications of PowerPoint. What are the characteristics of good presentations? What are the characteristics of bad presentations? 2

Topics covered Searching multimedia resources Uploading, downloading documents and other files Pictures, audios, videos etc. 3

Searching information on the web Net surfing Scanning pages and clicking on links randomly Using a URL Quickest way to find information on the Internet But you must know where it is located Use search tools and services Assist you in locating the information you need among the vast amount of information available on the Net 4

Characteristics of multimedia Large in file size May be dynamic in nature Audio or video instead of static text or image No simple methods for indexing or describing the contents of the files Varies kinds of file formats JPEG, GIF, TIFF in images MOV, MPEG in video MP3 format in Audio 5

Searching multimedia resources Various kinds of buttons on the search engine Web Displays relevant all types of files i.e. text, images, sound, videos, etc. Images Displays only relevant images Videos Displays only relevant video files 6

7 Searching information on the web Analyze your topic Choose the search tool you need Learn how to use the search tools Formulate your search strategy Search with a question in mind

8 Analyze your topic What are you searching? for what purpose? What type of information do you want? The purpose is to determine what terms to use in your search What search tool features you need to search successfully

9 Select the search tool Choose the search tool you need Search tools find documents matching your info. need Every search tool is different. They vary in features and size/comprehensiveness. The most important features in selecting a search tool are those which allow you to refine or focus your search when you need to

10 Learn search tools Learn how to use the search tools Being familiar with most of the major search tools and their capabilities allows you to zero in on your search Learn how to use Boolean logic, phrase searching, truncation, field searching, etc. Spend time reading the Help files to know its features and capabilities

11 Formulate a search strategy Formulate your search strategy Allows you to search for information systematically It also saves you a lot of time and money if you are paying for Internet access by the minute Your search strategy should be based on your information need

12 Search with a question in mind How am I going to use this? Do I have enough or too much information? Scan the content of the material to find out if it has anything of value Evaluate the website for accuracy and authority

13 Pick your site learn to use the search tools choose your words carefully Vary your spelling know how to widen your search Know how to use the refining techniques Use multiple search engines Use meta-search engines Use specialized search engines Reuse your search Simple Search Strategy

14 Pitfalls Endless links that lead to getting lost Data traffic takes infinity to download Too many; too few; many irrelevant sites Information overload Solutions Stop/ try another search Try it another time /site; change ISP Refine or vary your search Search with a more specific question in mind Searching Pitfalls and solutions

Search string or query Search string The text you write in the search box is called Query or search string. For PowerPoint files Write the text related to the topic and then add extension of PowerPoint program like PPT or PPTX Ex. Computer systems ppt, or “Computer System” ppt, or “computer system”+ppt 15

Search Query 16

Searching pictures Enter the name of topic in the search box of search engine Select Images tab rather than Web 17

Searching audio/video files Enter the search string in the search box Add the type of file if you know For example, the following strings can be used: Tips for PowerPoint video “Tips for PowerPoint” +mp3 free download You may enter the string and then click videos option in the search engine If you know the exact name and extension then enter directly 18

Searching videos 19

Plug-ins Allow end users to view and interact with new types of documents and images Helper applications (or players) display or run files downloaded from the Internet For example: Adobe Flash Player 20

Plug-ins for multimedia Plug-ins are used to display multimedia files: Text Images Sound Animation, video, and presentation 21

Text Text and document plug-ins Overcome the display limitations of HTML and Web browsers Adobe Acrobat provides Special fonts and graphic images embedded as data into the file 22

Images Most browsers read Only bitmapped JPEG, GIF, and PNG image files Plug-ins that enable The viewing of vector formats (such as Flash) are useful Vector graphics are device-independent. An image is displayed at the correct size and with colors supported by the computer. 23

Sound Digitized sound files MP3, WAV, AIF, or AU formats may be sent And played on a user’s computer from Internet 24

Sound Speech files can be encoded into A token language that is a shorthand description of the speech components. Sound elements may also be embedded into Projects made with various authoring tools Some sounds can be multicast to Allow multiple users to listen to the same data streams without duplication. 25

Animation, Video and Presentation The most data-intense multimedia elements are Video streams containing images and synchronized sound Video streams are commonly packaged as Apple’s QuickTime, Microsoft’s Video for Windows (AVI), and as MPEG files The compromise between bandwidth and quality is Ever present when designing, developing, and delivering animations or motion video for the Web 26

Downloading Downloading means Transferring files from internet to your computer You can download different kind of files like Pictures, audio, videos, program files PowerPoint documents Word documents, Excel documents Templates, Programs, EBooks, etc. Sometime you need to sign in for downloading e.g. slideshare Programs: Internet download manager (IDM) 27

Downloading audio/video files Open the search engine like Google Search the video or audio file MP3 format works well with PowerPoint Open the desired webpage that is selected from the Google results Right click on the audio or video file and select “save link/target as” or click download button if found on the webpage Save dialog box appears with a default filename which you may change and click Save button 28

Downloading Pictures Enter a search string in the search engine Click Images button in the search engine Locate your image and then right click on the image Select “Save Picture As” from the popup menu Save Picture dialog box appears with a default filename which you can change Search the folder or save it in Downloads folder Click Save button 29

Uploading files Uploading means Transferring files from your computer to the internet You can share various kinds of files like PowerPoint slide notes Word, PowerPoint, Excel documents Adobe Pdf files Program files EBooks Templates, etc. 30

Uploading documents There are various websites which allow you to share your documents like slide share, facebook, twitter First you sign up or register Then you need to sign in with an address Then you can add a file on the site 31

Uploading audio/video Several websites allow you to add sound or movies For example, daily motions, tunepk, youtube, facebook First you sign up or register on that site Then you need to sign in with an address Then follow few steps to upload a sound or movie file 32

Activity-20 minutes Search a PowerPoint Presentation on the topic of “Computer Literacy”. Modify the terms for better results Download the presentation on your computer. View the downloaded file and open it in the relevant program. Copy your downloaded file from Downloads folder to another folder. 33

Thanks End of Lecture 23 34

Allah Hafiz 35