lunes, 19 de diciembre de 2016
lunes, 12 de diciembre de 2016
lunes, 28 de noviembre de 2016
lunes, 21 de noviembre de 2016
lunes, 14 de noviembre de 2016
SESSION 19
a)
The most common image file formats,are JPG, TIF, PNG, and GIF.
JPG is the most used image file format. Digital cameras and web pages normally use JPG files - because JPG heroically compresses the data to be very much smaller in the file.
TIF is lossless (including LZW compression option), which is considered the highest quality format for commercial work. The TIF format is not necessarily any "higher quality"
GIF was designed by CompuServe in the early days of computer 8-bit video, before JPG, for video display at dial up modem speeds. GIF discards all Exif data, and while GIF is fine for video screen purposes, GIF does Not retain printing resolution values.
PNG can replace GIF today (web browsers show both), and PNG also offers many options of TIF too (indexed or RGB, 1 to 48-bits, etc).
The most common image file formats,are JPG, TIF, PNG, and GIF.
JPG is the most used image file format. Digital cameras and web pages normally use JPG files - because JPG heroically compresses the data to be very much smaller in the file.
TIF is lossless (including LZW compression option), which is considered the highest quality format for commercial work. The TIF format is not necessarily any "higher quality"
b)
It's JPG, because because JPG heroically compresses the data to be very much smaller in the file.
c)
lunes, 17 de octubre de 2016
Session 14
1.
What is a hacker ?
Are a nasty short they try to steal the information packets carry like credit card numbers and passwords.
What is a virus?
Also attack computers ans servers. They cause problems like sending emails that you havent written and destroing the information store inside computers.
What is a ruter?
Move information along the internet by finding the shortest and fasthes path to the destination computer.
What can happen when packets of information are send by internet?
that separate the information and it can be lost.
2.
Wellcome to Pour-ar-prince, the capital of haiti,
Pierre wants to send e-mail to his family to help to have a clean water Montagues noires,because Charlie every day have to go to drink it, and be late 3 hours. For all this thinks Charlie can't go to school with her friends and study every day.
10 years ago the water be free and cleen, but now it has virus, bacteries, etc.
Peter intervents to enter in the inernet pass , and avait diferents things dangerous (ex: virus, hackers...).
Finaly delivery the e-mail to Charlie and her parents do the project clean water, and Charlie has go to school with other children's.
3.
You shouldn't give your adress to strangers.
You shouldn't give your telephon number to strange persons.
You must install anti virus software.
You must monitor constantly with the person that you chat.
You musn't enter in a prohivition pages.
You should say the police at dangerous moments.
Are a nasty short they try to steal the information packets carry like credit card numbers and passwords.
What is a virus?
Also attack computers ans servers. They cause problems like sending emails that you havent written and destroing the information store inside computers.
What is a ruter?
Move information along the internet by finding the shortest and fasthes path to the destination computer.
What can happen when packets of information are send by internet?
that separate the information and it can be lost.
2.
Wellcome to Pour-ar-prince, the capital of haiti,
Pierre wants to send e-mail to his family to help to have a clean water Montagues noires,because Charlie every day have to go to drink it, and be late 3 hours. For all this thinks Charlie can't go to school with her friends and study every day.
10 years ago the water be free and cleen, but now it has virus, bacteries, etc.
Peter intervents to enter in the inernet pass , and avait diferents things dangerous (ex: virus, hackers...).
Finaly delivery the e-mail to Charlie and her parents do the project clean water, and Charlie has go to school with other children's.
3.
You shouldn't give your adress to strangers.
You shouldn't give your telephon number to strange persons.
You must install anti virus software.
You must monitor constantly with the person that you chat.
You musn't enter in a prohivition pages.
You should say the police at dangerous moments.
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