Your SlideShare is downloading. ×
Internet services, by Óscar Castro García
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Internet services, by Óscar Castro García

127
views

Published on

Project about computer technology for the bilingual section of Technology at IES Praia Barraña school in Boiro, Spain.

Project about computer technology for the bilingual section of Technology at IES Praia Barraña school in Boiro, Spain.

Published in: Business, Technology

0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
127
On Slideshare
0
From Embeds
0
Number of Embeds
4
Actions
Shares
0
Downloads
0
Comments
0
Likes
0
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. Internet ServicesInternet Services
  • 2. 1. E-mail1. E-mailElectronic mail or e-mail is the most widelyElectronic mail or e-mail is the most widelyused and most common network service.used and most common network service.In the past, we had to wait days to receiveIn the past, we had to wait days to receivea letter from abroad, but now we needa letter from abroad, but now we needonly a few minutes or even seconds. Thisonly a few minutes or even seconds. Thisservice allows us to send text, picture orservice allows us to send text, picture orsound files in a very easy and simple way.sound files in a very easy and simple way.Quick messages can be transmittedQuick messages can be transmittedbetween two people or among groups.between two people or among groups.
  • 3. 2. The MP32. The MP3 No doubt this service has become one of theNo doubt this service has become one of themost used by netizens (citizens who surf themost used by netizens (citizens who surf theInternet), especially children and young people.Internet), especially children and young people. An MP3 is an audio compression system withAn MP3 is an audio compression system withwhich we can store music with the same qualitywhich we can store music with the same qualityas a CD, but in much less space.as a CD, but in much less space. It allows us to download all kinds of sound orIt allows us to download all kinds of sound ormusic files to our computer, that is, if we want tomusic files to our computer, that is, if we want tohave the song from our favorite band on ourhave the song from our favorite band on ourcomputer, we just have to enter some of the sitescomputer, we just have to enter some of the sitesthat offer this service, choose what interests usthat offer this service, choose what interests usand download it to our computer. We will be ableand download it to our computer. We will be ableto listen to songs whenever we want.to listen to songs whenever we want.
  • 4. 3 Videoconferencing3 Videoconferencing If you were a journalist and had to interviewIf you were a journalist and had to interviewsomeone who lives thousands of miles away, yousomeone who lives thousands of miles away, youwould typically take a plane and spend severalwould typically take a plane and spend severalhours in the air to get to your interview.hours in the air to get to your interview.However, with this system, it is no longerHowever, with this system, it is no longernecessary, because you can do it from yournecessary, because you can do it from yourhome, office, college or university, without havinghome, office, college or university, without havingto travel outside the country.to travel outside the country. Videoconferencing is a communication systemVideoconferencing is a communication systemspecially designed for remote meetings, allowingspecially designed for remote meetings, allowingus to see, hear and talk to people from all overus to see, hear and talk to people from all overthe world in real time. In addition, we can sharethe world in real time. In addition, we can shareall kinds of information from documents toall kinds of information from documents toimages, pictures and video.images, pictures and video.
  • 5. 4*4* There are several models and brands of video equipment, suchThere are several models and brands of video equipment, suchas:as: - Personal equipment: Where the system is installed on the- Personal equipment: Where the system is installed on thecomputer.computer. - Group equipment : They are larger systems because they can be- Group equipment : They are larger systems because they can beconnected to one or two 27-inch monitors, so that several peopleconnected to one or two 27-inch monitors, so that several peoplecan participate in the videoconference.can participate in the videoconference. The elements of a videoconferencing system are:The elements of a videoconferencing system are: - CODEC (Encoder / Decoder, or also Compressor /- CODEC (Encoder / Decoder, or also Compressor /Decompressor). Converts video and audio signals into digitalDecompressor). Converts video and audio signals into digitalsignals, considered the core of the videoconferencing system.signals, considered the core of the videoconferencing system. - Device Control: Controls the CODEC and peripheral equipment- Device Control: Controls the CODEC and peripheral equipmentsystem.system.
  • 6. 4*4* - House robotics are included in any equipment. They are handled by the- House robotics are included in any equipment. They are handled by thecontrol device.control device. - Microphones: Responsible for capturing the audio that is sent to the- Microphones: Responsible for capturing the audio that is sent to therecipient.recipient. - Monitors: To observe those involved in videoconferencing and any type- Monitors: To observe those involved in videoconferencing and any typeof image you want to display.of image you want to display. - Software videoconferencing system, which allows the joint action of all- Software videoconferencing system, which allows the joint action of allthe elements named.the elements named. - Communication device: The digital signal coming from the CODEC and- Communication device: The digital signal coming from the CODEC andsent by the transmission channel.sent by the transmission channel. - Transmission channel: Signal that can transmit audio and video to- Transmission channel: Signal that can transmit audio and video toanother place in the world. It can be coaxial cable, microwave, opticalanother place in the world. It can be coaxial cable, microwave, opticalfiber, satellite, etc..fiber, satellite, etc.. - Space: To be conditioned for a good sound, lighting equipment- Space: To be conditioned for a good sound, lighting equipmentinstallation and to conduct the sessions.installation and to conduct the sessions.
  • 7. 5. The e-commerce5. The e-commerce The e-commerce allows all kinds of transactions andThe e-commerce allows all kinds of transactions andpurchases over the Internet.purchases over the Internet. The main advantage of this service is that the online storesThe main advantage of this service is that the online storeshave no schedule, so we can buy anything we wanthave no schedule, so we can buy anything we wantanywhere in the world, at any time without leaving ouranywhere in the world, at any time without leaving ourhome.home. We pay with credit cards and the office is at home, so it’sWe pay with credit cards and the office is at home, so it’san easy way to buy things.an easy way to buy things. Its a real store, because we can stroll around the page,Its a real store, because we can stroll around the page,window shopping as if we were in a mall. Then we selectwindow shopping as if we were in a mall. Then we selectwhat we like and finally, we buy what we want.what we like and finally, we buy what we want.
  • 8. 6 Download programs6 Download programs On the Internet, there are several places from which weOn the Internet, there are several places from which wecan obtain the latest types of software being used andcan obtain the latest types of software being used anddownload them directly to our computer.download them directly to our computer. Of all that we can get in terms of software, there are twoOf all that we can get in terms of software, there are twotypes: shareware and freeware.types: shareware and freeware. Shareware has an economic value, but we can downloadShareware has an economic value, but we can downloadand use it free for a certain period of time, as a kind ofand use it free for a certain period of time, as a kind oftest. If after that time the program is to our liking, we cantest. If after that time the program is to our liking, we canbuy it directly on the same page. Otherwise, it will losebuy it directly on the same page. Otherwise, it will losecertain properties or it can expire and cannot be reused.certain properties or it can expire and cannot be reused. Freeware, however, is free, so its use is unlimited.Freeware, however, is free, so its use is unlimited.
  • 9. 7. Other services7. Other services The Internet is a practically infinite,The Internet is a practically infinite,we can find everything from thewe can find everything from thehistory of a country to a recipe. Buthistory of a country to a recipe. Butas the space available here is notas the space available here is notvery large, only some of the mostvery large, only some of the mostimportant services are shown.important services are shown.However, in addition to thoseHowever, in addition to thoseaspects already mentioned, there areaspects already mentioned, there areothers that can be found on the netothers that can be found on the netwhich are very useful.which are very useful.
  • 10. 8. Images8. Images
  • 11. Óscar Castro GarcíaÓscar Castro García3 ESO A3 ESO A

×