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They are computer systems.
The system that collects data (input data), processes
it and transmits it (output data).
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Copy the following sentences in the order that you
do them:
a) I save the photo in My Photos.
b) I print the photo.
c) I copy the photo from my digital camera.
Match the previous sentences with the stages
output, input, To process
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It’s a set of knowledge and techniques toautomatically process information and data with adevice. Examples: computer , PDA, Smartphone, GPS,Tablets, eBook, video console, MP5, Smart TV,Smartwatch, Google glass.
Data are encoded in binary code (2 digits).
Bit.- It´s the smallest unit used to represent data or information. 1 and Ø
Multiples of data
Byte.- 8 bits
Kilobyte.-1024 b
Megabyte.-1024 Kb
Gigabyte.-1024 Mb
Terabyte 1024 GB
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Hardware: The physical components of the computer
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Programs that process data.
Operating system: It’s a set of instructions (programs)
that start up a computer and enables hardware to
work. It permits communications between any program
and hardware. F.i. Displaying characters on the
monitor, printing information
It’s impossible that a computer can run without OS so it’s the
first software that you must install.
Windows, LINUX, Mac OS, android
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Programs that process data.
Other programs
Games, APPS, programs to process images, video, sound,
storage of data, multimedia applications: word, excel, tools
for drawing.
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Drives:
Where the
information is
stored
Hard disk,
USB, DVD,
memory card
Folders:
Contain and
organize files
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Files: Data are stored in that way
You can recognize a file by its: Name + extension (3 o 4 characters). Icon.
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Exercise 1
Exercise 2
Exercise 3
Exercise 4
Exercise 5
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It’s an array of computers connected together
that can share data and hardware (printers).
Elements of a network:
Computers (host, server and client) with a network
interface card.
Router, Hub, switches.
Programs to transmit information. Protocol TCP/IP
Transmission means: wires that connect computers or
wireless.
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Interconnected networks (e.g. Internet) It’s two or more networks connected.
Internet (World Wide Web). It’s a network of networkswhere every single network works independently and usesthe same protocol (TCP/IP). 192.145.12.3
Each computer connected to Internet is identified its own IPweb address. Moreover another way of identify a computeris domain name e.g. http://www.jesuitinasvalladolid.com/
Internet access To access the internet you need an internet provider.
Movistar, orange, etc are providers of internet access.
There are several ways to access to internet: ADSL Cable Satellite Internet Smartphone mobile phone
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Web pages
Web pages are hypertext documents (text, links,
images, multimedia). Name + extension (htm, html).
You can edit them with specific software such as
FrontPage, dreamweaver, Joomla, word or directly on
the website.
Web pages are identifies by URL address.
http://www.jesuitinasvalladolid.com
Browsers
If you want to open a web page you must install a
browser.
Internet explorers, Mozilla Firefox, Google chrome,
Opera, Safari are examples of browsers.
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Search engines These are web pages that you can find information with.
Google, Bing, Yahoo are examples.
Portals These are web pages that offer different resources:
News
Links to other web sites Search engines Multimedia information Chats Documents Shopping
Email to send and receive messages. Today is used to identify
people
Social networks. Virtual communities. Facebook Group of people who have a relationship in a virtual space
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Blogs
Web pages that are updated almost every day
Forums
People can exchange opinions and information
Chats (IRC).
Several people that communicate at the same time. Only text
Instant messaging.
Two people. For instance Messenger
Videoconferences. Skype.
Communication with sound and video
VoIP. IP telephony. Phone over internet
P2P (Peer to peer) networks. Emule, torrent
Programs that interchange a big amount of data (video, music)
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Thinking skill 1. Mapping mind
Thinking skill 2. Next slide
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