1-Why did the Russian satellite in space worry the Americans?
       because the Americans did not send any satellite and if the Russians 
2-What did the US president do as a result?
        he created ARPA
3-What was ARPA?
       ARPA was an association of the scientists and investigations to put together all their technology efforts
4-What is CERN?
      CERN is europe´s center fer reserch into high-energy physics
5- Who invented the World Wide Web?
       Tim bers-lee
6- What is HTML?
       HTML is the programming language in which all web documents are written
7-What is the difference bettween the internet and the World Wide Web?
       The internet is a network of computers connected by telephone line; the World Wide Web (WWW)  

- Hardware : is the computer machinery










- Software : the logical or software of a digital computer, includes all necessary software components that enable specific tasks

- Mouse :   is a pointing device used to facilitate the use of a graphical environment on a computer.

                             ENGISH                                                                    CATALAN
                    
                  - CD                                                                           -CD
                 -  DVD                                                                        - DVD
                  - USB                                                                         - USB
                   - Floppy Disc                                                             - Disquet
                    - Files                                                                        - Arxius
                    - Zip                                                                           -Unitat Zip
                    - Backups                                                                   - Copies de Seguretat
                    -External hard-Disc                                                    - Disc Dur Extern

- Dot matrix printers are fast

- The output of dot matriz printers is not very clear

-Laser printers are more expensive than dot matrix printers

-Laser printers are faster than dot matrix printers

                                     ADVENTAGES                                         DISADVANTAGES

                  

PLAMTOP  -You can carry, it everywere                                      -It´ s littel screen and is difficulti watch

LAMTOP  -It´ s big and is portable                                               -Your very time top`in lap ai realy hot

  

                    -Faster                                                                      -Hedy

DESKTOP  -It´ s very big                                                             -none portable     

                    -More memori

-Used pc. This pc is lam top .Carries a small mouse and cable of batteri
This pc have 3 years .Have a web cam and all for only 1,500 $

- You want a printer is in a good condition have 570 $