jueves, 17 de junio de 2010
lunes, 7 de junio de 2010
THE THEORY
1- Explain how connecting to the internet has changed
Old-style analogue lines are really slow and most connections now use digital lines.
1. Old-Style acces used "dial-up" connections over a normal analogue telephone line.
2. The much faster boardband connections usead today maje use of digital lines e.g. ISDN and ADSL as they can carry digital signals. They also have a wider bandwidth so can carry more data.
2- What do the letters kbps stand for and what does it mesure?Módem KBPS -> KiloBitsPerSecond.
RTB 56 kbps = 7 kBs (7 kilobytes por segundo); ADSL 1024 kbps (nominal 1 Mbps) = 128 kBs (128 kilobytes por segundo); Cable 2400 kbps
3- Draw a diagram to show how a user connects up to a website.
https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgmpuNF2TttosSeEC1IvKjbflnSHpmYWzUkEwbF21cunBidfV6t5lCT52vAeprqeNAe2opwfsBigg5nEVycmuJ_IqaTcMqWGI3vhbHPi60HW2Ed5iZ6LkEgdu9rZKvGkvymoTD6Ir5vHlw/s1600/dsl-conection-ok1.jpg
4- What are the two main parts of the internet called?
They are the WORLD WIDE WEB (WWW) and ELECTRONIC MAIL (E-Mail)
5- Explain fully how an e-mail is sent by someone and then read by the recipient
1. Create the message e.f. using a word processor of the e-mail software on a computer
2. Connect to the internet - although most connections are now "allwais on"
3. Press the "send" button
4. The message is sent from the sender's ISP to a "mailbox" in the computer system of the recipient's ISP.
5. The recipient later connects to the internet, opens their e-mail account, and finds the new message - which they then download and open.
6- What are attachments? Describe one potential problem with opening attachments.
As well as text, it's so also possible to send files via e-mail. These are called attachments.
The big problem is that is very easy and probable to take a virus from an infected attachment.
7-Explain two benefits and two problems of using e-mail.
BENEFITS: It's quick (it take seconds to send), it's cheap and the same message can easily be sent to loads of people.
PROBLEMS: The sender and reciver both need Internet accesand e-mail accounts, The hardware and software needed is expensive if you just need e-mail and if you get a single letter of an e-mail adress wrong, the messsage won't be delivered.
8- Explain the difference between a search engine and a portal.
SEARCH ENGINES: are websites that help you search for other websites.
PORTALS: are websites offering lots of different services - like search engines, e-mail and on-line shopping.
10) What country has the code "fr"?
France
What is the country code for the USA?
US
11) Explain what a hyperlink is and what it does?
A hyperlink is a reference to a document that the reader can directly follow, or that is followed automatically. The reference points to a whole document or to a specific element within a document.
12) What is found in a history folder?
history coursework
13) Explain how web pages that have already been visited can be displayed more quickly.
The computer can save web pages you view to its memory. This store of temporary web pages is called a cache.
14) What's the name for the process of making a file smaller? What's it called when the file is expanded back to its original size?
Other files like software updates or music files can be compressed to reduce their size and this means they'll take less time to download.
15) Give four rules of good website design.
- Keep the overall design simple and use a similar layout on all the pages, so it's easier to navigate through the site.
- Keep graphics to a minimum, they increase the file size and make download time longer.
- Keep the number of hyperlinks needed to reach anywhere to a minimum. Remember, their job is to help usersfind content quickly.
16) Explain how websites use dynamic content.
Dynamic Content enables websites to produce infotmation that may change every time the page is viewed e.g website countries. Dynamic website can also display customised details depending on what information you've entered on previous pages or on previous visits.
17) Explain how a shopper makes a purchase from an on-line retailer.
On-line shopping has got much more popular recently. The basic idea is that the retailer puts details of their products on a website. Customers can put the stuff they want into an electronic shopping basket. They then pay using a credit card, and the goods are delivered soon after.
18) What does encryption mean? Describe one of its benefits.
Websites that encrypt details like this are called "secure", are display a padlock icon in the browser. Sensitive information -like card details- is encrypted by the website into a code which can only be decoded with the right software and a password called a key.
19) List some of the problems that hackers can cause.
It's totally illegal, and once inside a system, the hacker might be able to view, edit, copy or delete important files, or plant a virus.
20) List five different types of user-based website.
- Discussion Boards
- Information resource
- Social Networking or Gaming sites
- Blogs
- File Sharing Uploads
21) Explain how copyright and libel affect UGC.
It's quite a social affair really. despite the fact that you can't spend time with anyone face-to-face, people develop good friendships through common interests and experiences.
22) Describe the main features of instant messaging.
- People find it more personal than e-mails and less intrusive than phone calls.
- You can make it even more personal now by using webcams or by sending and receiving audio in real time like a phone call.
- There are still a lot of security concerns, are mostly closed down beacuse of concerns for children's safety.
- With this is mind instant messagign services let you add or remove people from a personal contacts list so you're in control of who you talk to.
23) What are the pros and cons of social networks?
-The Pros
Social networking sites have paved the way for easier communication to your friends, family, or colleagues. One example is that instead of meeting in a certain place, you and your classmates could discuss a school activity by having a conference in a certain site that you are all members of, thus saving you time and effort. Virtual communities are also formed, which are composed of people connected together by common interests, purpose, and goal. People of different races also get to mingle with each other in just a few clicks.
-The Cons
While social networking sites have become places for establishing connections and meeting friends, they have also become likely places for identity theft and fraud. As you have to provide certain information such as your e-mail address, name, and location, others use these information and pretend to be you, especially when they are into illegal activities.
24) Describe some of the online video content provided by amateurs.
Popular video sharing websites include YouTube and Google Video. Much of the content on video sharing websites is produced by amateurs on webcams, digital cameras or mobile phone.
25) Explain the advantages of online software.
Advantages:
-i t means that your own documents and settings can be accessed through any computer with an Internet connection.
- you can also give other users permission to view and edit the document.
- multiple users can have a document open at any one time and can all work on it at once.
- the software can keep a list of all the revisions that have been made and which user has made them.
Old-style analogue lines are really slow and most connections now use digital lines.
1. Old-Style acces used "dial-up" connections over a normal analogue telephone line.
2. The much faster boardband connections usead today maje use of digital lines e.g. ISDN and ADSL as they can carry digital signals. They also have a wider bandwidth so can carry more data.
2- What do the letters kbps stand for and what does it mesure?Módem KBPS -> KiloBitsPerSecond.
RTB 56 kbps = 7 kBs (7 kilobytes por segundo); ADSL 1024 kbps (nominal 1 Mbps) = 128 kBs (128 kilobytes por segundo); Cable 2400 kbps
3- Draw a diagram to show how a user connects up to a website.
https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgmpuNF2TttosSeEC1IvKjbflnSHpmYWzUkEwbF21cunBidfV6t5lCT52vAeprqeNAe2opwfsBigg5nEVycmuJ_IqaTcMqWGI3vhbHPi60HW2Ed5iZ6LkEgdu9rZKvGkvymoTD6Ir5vHlw/s1600/dsl-conection-ok1.jpg
4- What are the two main parts of the internet called?
They are the WORLD WIDE WEB (WWW) and ELECTRONIC MAIL (E-Mail)
5- Explain fully how an e-mail is sent by someone and then read by the recipient
1. Create the message e.f. using a word processor of the e-mail software on a computer
2. Connect to the internet - although most connections are now "allwais on"
3. Press the "send" button
4. The message is sent from the sender's ISP to a "mailbox" in the computer system of the recipient's ISP.
5. The recipient later connects to the internet, opens their e-mail account, and finds the new message - which they then download and open.
6- What are attachments? Describe one potential problem with opening attachments.
As well as text, it's so also possible to send files via e-mail. These are called attachments.
The big problem is that is very easy and probable to take a virus from an infected attachment.
7-Explain two benefits and two problems of using e-mail.
BENEFITS: It's quick (it take seconds to send), it's cheap and the same message can easily be sent to loads of people.
PROBLEMS: The sender and reciver both need Internet accesand e-mail accounts, The hardware and software needed is expensive if you just need e-mail and if you get a single letter of an e-mail adress wrong, the messsage won't be delivered.
8- Explain the difference between a search engine and a portal.
SEARCH ENGINES: are websites that help you search for other websites.
PORTALS: are websites offering lots of different services - like search engines, e-mail and on-line shopping.
10) What country has the code "fr"?
France
What is the country code for the USA?
US
11) Explain what a hyperlink is and what it does?
A hyperlink is a reference to a document that the reader can directly follow, or that is followed automatically. The reference points to a whole document or to a specific element within a document.
12) What is found in a history folder?
history coursework
13) Explain how web pages that have already been visited can be displayed more quickly.
The computer can save web pages you view to its memory. This store of temporary web pages is called a cache.
14) What's the name for the process of making a file smaller? What's it called when the file is expanded back to its original size?
Other files like software updates or music files can be compressed to reduce their size and this means they'll take less time to download.
15) Give four rules of good website design.
- Keep the overall design simple and use a similar layout on all the pages, so it's easier to navigate through the site.
- Keep graphics to a minimum, they increase the file size and make download time longer.
- Keep the number of hyperlinks needed to reach anywhere to a minimum. Remember, their job is to help usersfind content quickly.
16) Explain how websites use dynamic content.
Dynamic Content enables websites to produce infotmation that may change every time the page is viewed e.g website countries. Dynamic website can also display customised details depending on what information you've entered on previous pages or on previous visits.
17) Explain how a shopper makes a purchase from an on-line retailer.
On-line shopping has got much more popular recently. The basic idea is that the retailer puts details of their products on a website. Customers can put the stuff they want into an electronic shopping basket. They then pay using a credit card, and the goods are delivered soon after.
18) What does encryption mean? Describe one of its benefits.
Websites that encrypt details like this are called "secure", are display a padlock icon in the browser. Sensitive information -like card details- is encrypted by the website into a code which can only be decoded with the right software and a password called a key.
19) List some of the problems that hackers can cause.
It's totally illegal, and once inside a system, the hacker might be able to view, edit, copy or delete important files, or plant a virus.
20) List five different types of user-based website.
- Discussion Boards
- Information resource
- Social Networking or Gaming sites
- Blogs
- File Sharing Uploads
21) Explain how copyright and libel affect UGC.
It's quite a social affair really. despite the fact that you can't spend time with anyone face-to-face, people develop good friendships through common interests and experiences.
22) Describe the main features of instant messaging.
- People find it more personal than e-mails and less intrusive than phone calls.
- You can make it even more personal now by using webcams or by sending and receiving audio in real time like a phone call.
- There are still a lot of security concerns, are mostly closed down beacuse of concerns for children's safety.
- With this is mind instant messagign services let you add or remove people from a personal contacts list so you're in control of who you talk to.
23) What are the pros and cons of social networks?
-The Pros
Social networking sites have paved the way for easier communication to your friends, family, or colleagues. One example is that instead of meeting in a certain place, you and your classmates could discuss a school activity by having a conference in a certain site that you are all members of, thus saving you time and effort. Virtual communities are also formed, which are composed of people connected together by common interests, purpose, and goal. People of different races also get to mingle with each other in just a few clicks.
-The Cons
While social networking sites have become places for establishing connections and meeting friends, they have also become likely places for identity theft and fraud. As you have to provide certain information such as your e-mail address, name, and location, others use these information and pretend to be you, especially when they are into illegal activities.
24) Describe some of the online video content provided by amateurs.
Popular video sharing websites include YouTube and Google Video. Much of the content on video sharing websites is produced by amateurs on webcams, digital cameras or mobile phone.
25) Explain the advantages of online software.
Advantages:
-i t means that your own documents and settings can be accessed through any computer with an Internet connection.
- you can also give other users permission to view and edit the document.
- multiple users can have a document open at any one time and can all work on it at once.
- the software can keep a list of all the revisions that have been made and which user has made them.
viernes, 19 de marzo de 2010
jueves, 18 de marzo de 2010
martes, 16 de marzo de 2010
martes, 16 de febrero de 2010
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