¡HOLA DE NUEVO! / HELLO AGAIN!

¡Hola a todos!

Ya he vuelto de vacaciones y toca ponerse las pilas otra vez para sacar bachillerato adelante. Al igual que el curso pasado, iré subiendo aquí todos los trabajos que vaya realizando. Espero que os sean igual de útiles que creo que me serán a mí.
¡Nos leemos!



Hello everybody!

I've come back from holidays and I have to study hard again to pass. At same last year, I'll uploading here all the works that I'll doing. I hope you find them as useful as I think they'll be for me.

How to dissapear online

We are going to know how to dissapear following the next steps:

• Step one:

 Desactivate primary accounts.

• Step two:

Search for yourself on the net.

• Step three:

Falsify undeletable accounts.

• Step four:

Unsubscribe from mailing list.

• Step five:

Deleate search engine results.

• Step six:

Contact webmasters.

• Step seven:

Consider data clearinghouses.

• Step eight:

Check in with your phone company.

• Step nine:

Delete your email.

Video pad

We're going to finish our term doing a video about news using a program of free software called Video pad.

What Is VideoPad?

VideoPad is editing software that helps in the enhancement of videos to give them a professional touch. It has many tools that can help you transform your homemade videos and share them with friends and family through various media. Here are some of the features of this software:

Effects

The effects in this software allow you to select from an array of fading transitions, preview them as real time applications and also set the time of the chosen effect. Therefore, you get to choose the manner in which the effects take place, control the amount of time for the effects, and preview them like they were final products.

Optimization

With VideoPad, you can easily add digital images and pictures, while also adjusting the brightness and contrast for your video. You can create effects similar to those found in old images and videos by applying the black and white effects. You can also play around with the sepia and negative toned effects. VideoPad allows you to input text or captions onto the video as well. There is also a set of great audio tools to experiment with.

Audio Tools

You can import set musical tracks or be more creative and come up with your own by combining two or more tracks. This tool also allows you to select or make your own soundtrack for your video. You can even input your own words into a narration on the video or if you have an existing one, you can simply import that to be added to the final product.

Social networks

My partner and me did a presentation about what is a Social network, how you can use it, types and security.
Here I put the link because we did it in Prezi, but, if you have problems to see it, also I write here the information.
I hope you like it!

http://prezi.com/k_zkfeul2zj5/social-networks/


A. Definition:

Alternatively referred to as a virtual community or profile site, a social network is a web site on the Internet that brings people together in a central location to talk, share ideas, share interests, make new friends, etc.

B. Before & now:

This type of collaboration and sharing of data is often referred to as social media. Unlike traditional media that is often created by no more than 10 people, social media sites contain content that has been created by hundreds or even millions of different people. Below is a small list of some of the biggest social networks used today.

C. Six Major Social Network Categories:

1.Social connections
2.Multimedia sharing
3.Professional
4.Informational
5.Educational
6.Hobbies

1.Social connections

Keeping in touch with friends and family members is one of the greatest benefits of social networking. Here is a list of the most widely-used websites for building social connections online.

• Facebook: Arguably the most popular social media utility, Facebook provides a way for users to build connections and share information with people and organizations they choose to interact with online.



• Twitter: Share your thoughts and keep up with others via this real-time information network.

• Google +: This relatively new entrant to the social connection marketplace is designed to allow users to build circles of contacts that they are able to interact with and that is integrated with other Google products.





• MySpace: Though it initially began as a general social media site, MySpace has evolved to focus on social entertainment, providing a venue for social connections related to movies, music games and more.



• Tuenti: is a Spanish social network that is similar to Facebook.

2.Multimedia sharing

Social networking makes it easy to share video and photography content online. Here are some of the most popular sites for multimedia sharing.

YouTube

Flickr

Picasa

Instagram

Vine

3. Professional & 4. Informational

3.Profesional

Professional social networks are designed to provide opportunities for career-related growth. Some of these types of networks provide a general forum for professionals to connect, while others are focused on specific occupations or interests. A few examples of professional social networks are listed below.

 LinkedIn

 Nurse Connect

4.Informational

Informational communities are made up of people seeking answers to everyday problems. For example, when you are thinking about starting a home improvement project or want to learn how to go green at home, you may perform a web search and discover countless blogs, websites, and forums filled with people who are looking for the same kind of information. A few examples include:

Super Green Me: HGTV 

DiscussionForums: Do-It-Yourself Community.

5.Educational &  6.Hobbies

5.Educational

Educational networks are where many students go in order to collaborate with other students on academic projects, to conduct research for school, or to interact with professors and teachers via blogs and classroom forums. Educational social networks are becoming extremely popular within the educational system today. Some examples of such educational social networks are listed below.

The Student Room, The Math Forum, ePALS School Blog, Classroom 2.0, Academia.edu

6.Hobbies

One of the most popular reasons many people use the Internet is to conduct research on their favorite projects or topics of interest related to personal hobbies. When people find a website based on their favorite hobby, they discover a whole community of people from around the world who share the same passion for those interests. This is what lies at the heart of what makes social networks work, and this is why social networks that are focused on hobbies are some of the most popular. A few examples of hobby-focused social networking sites include: Oh My Bloom, My Place at Scrapbook.com,

 Sport Shouting 

D. Build Connections with Caution

These are just a few examples of the many opportunities to engage in dialog via social media websites. The fact that there are so many ways to connect with like-minded individuals online can be very exciting and beneficial, but it's essential to proceed with caution. Keep in mind that not everyone who shows up on a social media website is who he or she claims to be. Exercise caution and closely guard your personal information any time you engage in social networking activities regardless of what kind of social utility you are using.

Prezi

What is Prezi?

Prezi is a presentation tool that can be used as an alternative to traditional slide making programs such as PowerPoint. Instead of slides, Prezi makes use of one large canvas that allows you to pan and zoom to various parts of the canvas and emphasize the ideas presented there. Prezi supports the use of text, images, and videos and also provides a collection of templates to choose from to help new users get accustomed to the interface.

Prezi offers educational licenses for students and teachers. This allows students and teachers to create private presentations that cannot be access by the public.

Computing Security

1. INFORMATION SECURITY

1.1 . Computer Security

• Physical security . Is understood as the set of measures and protocols for
control physical access to an item. Applied to computer security as
are measures to prevent unauthorized persons from reaching
specific device or terminal .
• Logical security . There are different protocols , algorithms and programs
can directly manipulate information by controlling access to the same
you from third parties. Passwords are encrypted and codes are part of the
logical security .
• Human Security . It is that which resides in the user who runs the
information. It is the responsibility it takes for the information and
measures and protocols of behavior held to manage
properly . Choosing strong passwords, non-disclosure and key
use of security tools are human security.

1.2 . Data protection by encryption

● ENCRYPTION .
Message encryption is certainly one of the
older systems to protect
communications. Different systems
coding, have evolved over the
history , but has been the application of machinery and
when computers cryptography algorithms
have achieved true complexity .
Symmetric encryption . Use the same key to
encrypt and decrypt . The key is shared by the
sender and the receiver of the message , using it the
to encrypt the message first and the second
to decode .
Asymmetric encryption . It uses two different keys, one to encrypt and one to decrypt . the
shared key to encrypt and public , the decryption key is secret and private . the
sender uses the recipient's public key to encrypt the message and , upon receipt , the
receiver uses its private key to decrypt it. This type of cryptography is
also called public key .
● HASH FUNCTIONS
The functions , are called cryptographic reduction , you have irreversible.
These functions operate on the data obtained from them a key that represents
nearly uniquely . The fundamental property of these algorithms is that if two
hash keys are different , it means that the data that generated these keys are
different .
● steganography
It is a set of methods and techniques to hide
messages or within other objects , so that not
perceives the existence of the former. A hidden message
formed by the first letter of each sentence in a text is
a form of steganography. There are programs that
enter data into images or music files
taking advantage of the limitations of the human senses ,
well as inaudible frequencies in a file
audio or small "imperfections" in an image.

1.3 . Securing Communications :

● THE FIREWALL
A firewall is a
element responsible for controlling and
filter connections to a network
machine or set of machines.
It is a basic mechanism
Threat prevention
intrusion. It involves
barrier between
computer or private network and the world
outside. Controls access by
entrance and exit to the outside , filter
communications, records
events and generates alarms.
● PROXY SERVERS
It is a computer that acts as an intermediary between a client and a destination. when a
customer wants information , connects to the proxy server rather than with the
target server.
The proxy server contacts the server
destination as if the customer
and once the information is obtained
sent to the computer that initiated the request.
In a local network for a proxy server can
offer this service to all computers,
so that communications are not
performed with the outside but only
with the proxy server. Furthermore, this
is the only server that accesses and
exchanging data with the external network.

1.4 . Security Wi- Fi network

When the information travels over radio waves , they are accessible to any
receiver is within the area they cover, is authorized or not.
With the proliferation of such networks is quite common to find that the same
terminal receives signals from several neighboring networks. It is therefore important to protect
Wi -Fi communications possible
intruders.
There are two reasons for this. first
place to ensure the confidentiality of
communications network . Secondly ,
to prevent an intruder from using the
network to carry out illegal actions
will end up being charged to the owner of the
same .
To protect Wi-Fi networks used various
security protocols the most common
are : WEP , WPA and WPA2 , provided that
it may have been in use since the latter
which is the safest .

1.5. Safe Surfing : https protocolç

This web communication encryption protocol is a secure version of the http protocol
web , and is common in communications with banks, online stores and
private services. When you access a page that requires this protocol
client browser and server agree on making a communication
encrypted. Often some browsers indicate access to this service
using a padlock icon .

1.6. Safe Surfing : digital certificate

A digital certificate (also known as certificate
public key or identity certificate ) is a document
whereby a digital certification authority
ensures the link between the identity of a subject or
entity (for example, name, address and other aspects of
ID) and public key .
One element that can be used as
digital certificate is an electronic ID .

Gimp

In this term we're going to work with a program called Gimp and we're going to edit images with this programme. Here we have my first work.