Theory and questions in this link: NETWORK
Answers:
1. Computer network are two or more computers are network or compromise a network when they are conected to each other and can exchange information. The simplest computer network is that of two computers connect directly through a network cable.
2. A small network can be easily created by connecting various computers to a device called swich. If necessary various switches can be connected together in order to create networks with even hundreds of computers.
3. A switch is a device to connect different computers to create a small network. The purpose of the switch is to direct the trafic of data amog the different computers.
4. A switch is a device to connect different computers to created a small networ.
The purpose of the switch is to direct the traffic if the data among the different computers that if flows smoothly, like a policeman directing street traffic at an intersection.
The purpose of the switch is to direct the traffic if the data among the different computers that if flows smoothly, like a policeman directing street traffic at an intersection.
5. The start configuration is the most commonly used in small networks.
6. A network card is the device that connect through a wire the computer to the switch.
It´s connect a computer to a network card must be install. This card is a peripheral that acts an intermediary between the network and computer.
It´s connect a computer to a network card must be install. This card is a peripheral that acts an intermediary between the network and computer.
7. Because desktop computers and more modern laptops alredy come standard with a network card integrated into the motherboard.
8. Network card controller is the draiver that you need to set up to controll the hardware.
9. Network protocol: is the set integrate into the computer´s operating system, although they must be activated in order for them to work: they don´t come activated by default. The most commenly used network protocol is called TCP/IP, the same thatis used on the internet.
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4.1. COMMUNICATION SYSTEM
In ICT (Information and Communication Technology) you use a computer as a means, the users as the interlocutors, the files are the messages and the protocols as the type of codes that the computers use to understand each other.
A network is two or more computers connect to one another tha can share documents, files, printers, etc. Some networks have a powerful computer called a server which manages the network and stores most of the information. As well as there are terminals, which are less powerful computers that work with information received from the server.
A server basically consists of the following elements: the server, the terminals, a network card for each computer to transmit and to receive the data, a transmission means, a switch tha controlls and distributes the data the computers and the neccesary programs to transmit this information from one computer to another.
ACTIVITY 1.
a) Copy and complete the table in your blog about these means of communication:
INTERLOCUTORS
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MEANS
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CODE
| |
TELEGRAPH
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Tape
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Electric cable
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Morse
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FAX
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Paper
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Telephone line
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Sounds
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SMOKE SIGNAL
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Smoke
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Smoke
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Binary code
|
POST OFFICE
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A letter
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Portal services
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X
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TELEPHON
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Talk conversation
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Telephone line/cable
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X
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TELEVISION
|
Images
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Electric cable
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b) Do you know Morse code? The most famous message is SOS ***---***. Transmit a message to your partner in morse touching his back quickly for the dots and longer for the dashes. Look at the code on the internet and copy it into your blog. Write down your name with this code.
4.2. INTERNET. THE NETWORK OF NETWORKS.
The Internet is a huge network of networks, interconected worldwide.
When we go into the Internet we connect our computer to a server. There are millions of servers all over the world each of them identified bya a domain name (eg. www.terra.es). The generic top-level domains consist of two or three letters is used to indicate the locations, organisation or field tha this website belons to (e.g. es,org, com, net, edu, ...)
INTERNET SERVICES:
A) WEB PAGES: these are enriched text documents with many format options. The are divided into frames and can include images and other multimedia elements, eg. sound or video files. Web pages include links to different parts. These web pages have the extension HTML and it is necesary a browser to be readed.
B) BLOGS AND WIKI PAGES: Blogs and wiki pages are special types of web pages. Blogs contain articles from one or several authors. The most recent entry appears first on the page. Wiki pages can be created and modifield by different users from their browser. Any can participate in creating and editing the information (eg. Wikipedia).
C) E_MAIL (ELECTRONIC MAIL): enables us to send and receive messages that contain either text alone to text multimedia elements.There are two types of email: POP or WEB Email.
D) SOCIAL NETWORK. A virtual communicaty is a group of people who communicate and have relationship in a virtual space: tuenti, facebook, myspace, orkut, etc.
E) OTHERS: Chats, Forums, P2P networks, FTP, IP Telephony, Instant messaging.
ACTIVITIES Nº1.
TASK 1.
1.- Go to the home page of Nominalia www.nominalia.com and find a form wher you can check if a domain name is registered or not. Try with different names and compares your findings with the rest of the class.
1.- Find out about these programs: PIDGIN, OPERA, EUDORA, ARES, COFFECUP, AMAYA, PEGASUS MAIL, BITTORRENT.What Internet service are the desingned for?
2.- Using Google Docs or Hotmail Docs, work with a classmate and create a glossary of terms related to computers security that includes entries such as: virus, antivirus, firewall, compunter worm, trojan, malware, hoax, etc. ..share this file with its link and put it into your WebBlog.
2.- Using Google Docs or Hotmail Docs, work with a classmate and create a glossary of terms related to computers security that includes entries such as: virus, antivirus, firewall, compunter worm, trojan, malware, hoax, etc. ..share this file with its link and put it into your WebBlog.
TASK 1.
2.- Create a simple web page using HTML programing: LINK: Códido HTML
3.- Create a web page using for example www.everyoneweb.es (or http://sites.google.com) that offers the opportunity of creating a web page direcly on the web site, working from the browser and without installing any programs on your computer.
TASK 2.
1.- Create a wiki.
ANEXES:
http://www.webs.com/http://galeon.hispavista.com/
http://www.everyoneweb.es/
http://www.uv.es/jac/guia/ (GuÃa Código HTML)
PRESENTATIONS ONLINE: LINK HERE
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