SESSION 19

a)

BMP 
It has been widely used because it was developed for Windows applications. The image is formed by a grid of pixels. The BMP format does not suffer loss of quality and is therefore suitable for storing images that are to be manipulated later. Advantage: Saves a lot of information from the image.

GIF

It has been specifically designed to compress digital images. Reduce the color palette to 256 colors at the most (8-bit color depth). It supports smaller number of colors and this allows optimizing the size of the file containing the image. Advantage: It is an ideal format for publishing drawings on the web. Disadvantage: Not recommended for photographs of certain quality or original because the actual or true color uses a palette of more than 256 colors.

JPG-JPEG

Nearly every digital camera can save images in the JPEG/JFIF format, which supports eight-bit grayscale images and 24-bit color images. JPEG applies lossy compression to images, which can result in a significant reduction of the file size. Applications can determine the degree of compression to apply, and the amount of compression affects the visual quality of the result.

TIFF

The TIFF (Tagged Image File Format) format is a flexible format that normally saves eight bits or sixteen bits per color (red, green, blue) for 24-bit and 48-bit totals, respectively, usually using either the TIFF or TIF filename extension. The tagged structure was designed to be easily extendible, and many vendors have introduced proprietary special-purpose tags – with the result that no one reader handles every flavor of TIFF file

PNG

The PNG (Portable Network Graphics) file format was created as a free, open-source alternative to GIF. The PNG file format supports eight-bit paletted images (with optional transparency for all palette colors) and 24-bit truecolor (16 million colors) or 48-bit truecolor with and without alpha channel - while GIF supports only 256 colors and a single transparent color.

Compared to JPEG, PNG excels when the image has large, uniformly colored areas. Even for photographs – where JPEG is often the choice for final distribution since its compression technique typically yields smaller file sizes – PNG is still well-suited to storing images during the editing process because of its lossless compression.

b) Which image format preserves the quality better when it is compressed?

The GIMP format

c) Which formats are more suitable for web design?

The JPEG, GIF and PNG formats

PART 2

1. These is our album of Icaria's images

2.

Monestir de sant cugat de dalberto banderas mec

SESSION 15

This is our web about basketball

SESSION 13

1 What is a hacker?

Hackers are persons that enter in the people accounts and then they try to steal the information

2 What is a virus?


Virus also attack computers and and electronic programs. They cause problems like don't let to save the documents  and they destroy information stored inside computers.

3 What is a router?

Routers  move the information along internet by finding the shortes and fastest path to the destination             computer

4 What can happen when packets of information are sent by Internet?

A hacker can steel or eliminate your information

HAITI

More than 1 billlion of people in the world hasn't got clean water. Reaserach shows that clean water allows residents. In poor villages to hold jobs, grow food...

They can spend money i other important things like medicine, food and education. Some 6000 childrens die every day from diseases they get from drinking dirty water.

 With fewer streams carrying drinkable water many haitians dig and drill wells to acces spaces.

With the help of goverment and international aid people in Haiti will have access to clean water.

OUR SCHOOL

Our School by xdddDavid on Scribd

SESSION 11

This is our avatar

SESSION 7

             

SESSION 7

     INTERNET TERMS

   

It is an abreviattion from information technology.                                                   true

The internet and the world wide  (www) are the same.                                           false

A browser is a person who enjoys looking at www.                                               false

You can see pictures and words online but you cannot listen the sounds               false

You need the newest,fastest computers to use the web                                        true

Most  internet users are men.                                                                             false

@ is called "at" in English.                                                                                 true

2.Match these words to their definitions 

A browser is a software that lets you acces the www.
Download: get programs to the internet 
Chat: have a conversatiion throught the internet by writing or speaking
E-mail: letters you sends by internet
Modem:thing thats conect a computer to the internet
A wi-FI wireless is a device that allow computers to connect to the internet using a router
On-line: when you are connected to the internet
The software is the computer program
Scroll down/up is for move the page up and down using the save tabs with your mouse

3. Choose the best word to complete these sentences:

I use a fast modem to connect my computer to the Internet.
RealPlayer is computer software that you use to listen to music on the WorldWide web
I always save my documents in floppy disks
Chat is a good way of meeting other people on the Internet
A beep is a sound your computers makes when there is an error

4. Answer these questions:

1.A Web browser is a program used to visit websites, while a search engine is a website that allows you to look for specific websites or information based on keywords, dates and other criteria.

2. Google

3. Chrome

SESSION 6

                            SESSION 6: COMPUTERS & YOU

         
                                                            

       1. The brand of our computer is LG.

       2. The operator sistem of our computer is windows.

       3. Our computer uses google chrome and mozilla firefox.

       4. There are three buttons in the computer's mouse.

       5. Our computer has a DVD-ROM and two USB-drives, but it hasn't got a DVD-drive.

       6.  RETURN: retornar       SPACE BAR: barra d'espai       SHIFT: majúscula
           
            TAB: tabulador             DELETE: esborrar                     HYPHEN OR DASH: guió -

            ESCAPE: escapar         CONTROL: control                  PERIOD OR DOT: punt .
         
            COMMA: coma ,          COLON: dos punts :                 RIGHT PARENTHESIS: parèntesis dret )            
            SLASH: barra /              AT SYMBOL: arrova @
   



     2. Match these word-processing terms with their definitions. Then compare your answers with a      partner.

      1. Windows is a list of computer operations.
 
      2. The menu is a box on the screen that shows information

      3. A iconn is a small picture or symbol.

      4.A file is a text or data stored together with a special name

      

      5. A word processor is a software for creating text files

     6. The click is a pres and release button on the mouse 

     7. The cursor is a litle arrow on the screen that moves when  you move the mouse

     3. Match these word processing commands with their definitions below.

      

         Duplicated highlited text/images to put somewhere else: copy

         Preserve the contents of the document: save
         Cut text/images from one place to somewhere else: cut and paste
         Open and existing document: open
         Create a new document: new
         Send the contents of a document to the printer: print
         Close the document without quitting the word processor: close