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The Information Technology (IT) Portal

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Information technology (IT) or information and communication technology (ICT) is a broad subject which deals with technology and other aspects of managing and processing information, especially in large organizations. Particularly, IT deals with the use of electronic computers and computer software to convert, store, protect, process, transmit, and retrieve information. Over the past 20 years, its prevalence has dramatically increased so that it is now a part of nearly every aspect of daily life.

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Computer-aided design (CAD) is the use of a wide range of computer-based tools that assist engineers, architects and other design professionals in their design activities. It is the main geometry authoring tool within the Product Lifecycle Management process and involves both software and sometimes special-purpose hardware. Current packages range from 2D vector based drafting systems to 3D solid and surface modellers.

CAD is sometimes translated as "computer-assisted", "computer-aided drafting", or a similar phrase. Related acronyms are CADD, which stands for "computer-aided design and drafting", CAID for Computer-aided Industrial Design and CAAD, for "computer-aided architectural design". All these terms are essentially synonymous, but there are a few subtle differences in meaning and application.

CAD was originally the three letter acronym for "Computer Aided drafting" as in the early days CAD was really a replacement for the traditional drafting board.

But now is the term is often interchanged with "Computer Aided Design" to reflect the fact that modern CAD tools do much more than just drafting.

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WikiProjects

WikiProjects connected with information technology:

  • Blu-ray
  • C++
  • Computer science
  • Computing
  • Computer networking
  • Computer Security
  • Early Web History
  • IRC
  • Macintosh
  • .NET
  • Plan 9
  • Programming Languages
  • Video games
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Categories

Subcategories of Information technology:
Computer science - Data management - Information architects - Internet - Technical communication - Computer network security

Subcategories of Computer science:
Algorithms - Anti-patterns - Artificial intelligence - Compilers - Theory of computation - Computer science awards - Computer scientists - Computer vision - Cryptography - Data compression - Data structures - Information theory - Inter-process communication - Lambda calculus - Logic in computer science - Machine translation - Programming - Theoretical computer science - Type theory

Subcategories of Computing:
Computer architecture - Computer benchmarks - Bioinformatics - Engineering Informatics - Computer books - Computer companies - Computer conferences - Computing mascots - Data privacy - Computer-aided design - Distributed computing - Embedded systems - Fictional computers - Computer graphics - Computer hardware - Human-computer interaction - Computer humor - Computer languages - Computer law - Legacy systems - Computational linguistics - Computer magazines - Multimedia - Computer networks - Parallel computing - Computing platforms - Retrocomputing - Computer science - Computer security - Software - Software engineering - Computer stubs - Technical communication - Coding theory - Underground computer groups

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Study guide

Up to date as of January 14, 2010

From Wikiversity

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The Information technology Portal

Welcome to the Information Technology portal. This portal is intended to be a user-friendly guide to information technology content on Wikiversity for pre-school, primary and secondary levels. For a more specialist and advanced portal, please refer to the computer sciences portal.

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Featured content

Please feel welcome to look through the information technology content (right) and select some for this feature box.

Original Neil Postman: Five Things We Need to Know About Technological Change

First, that we always pay a price for technology; the greater the technology, the greater the price

Second, that there are always winners and losers, and that the winners always try to persuade the losers that they are really winners

Third, that there is embedded in every great technology an epistemological, political or social prejudice. Sometimes that bias is greatly to our advantage. Sometimes it is not. The printing press annihilated the oral tradition; telegraphy annihilated space; television has humiliated the word; the computer, perhaps, will degrade community life. And so on.

Fourth, technological change is not additive; it is ecological, which means, it changes everything and is, therefore, too important to be left entirely in the hands of Bill Gates.

And fifth, technology tends to become mythic; that is, perceived as part of the natural order of things, and therefore tends to control more of our lives than is good for us. .... When a technology become mythic, it is always dangerous because it is then accepted as it is, and is therefore not easily susceptible to modification or control.

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Turning a PC into a Zombie Computer
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1. A virus writer sends out viruses, infecting ordinary users' PCs.
2. Infected PCs log into an IRC server or other communications medium, without their owners knowing, forming a network of infected systems known as a botnet.
3. A spammer purchases access to this botnet from virus writer or a dealer.
4. The spammer sends instructions to the botnet, instructing the infected PCs to send out spam.
5. The infected PCs send the spam messages to internet users' mail servers.
This is a diagram of the process by which spammers create and use zombie (virus-infected) computers to send spam. The diagram is for use when educating classes about the importance of keeping computers virus-free. It can also be used to explain to learners why it is that so much spam is received in their mailboxes and why unidentified attachments should not be opened. Click on the image for a full size version which you can freely re-use and modify. Print it and use it for your lessons, integrate it into your pages on Wikiversity, or use it in other learning resources and websites. Use the links below to find more images like this one.

Images relating to spam and email
Images of the internet - Telecommunications images - Communication technology images


This image is a part of the Educational Media Awareness Campaign, raising awareness among educators about the availability and usage of millions of free internet media in education.
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Create a new information technology page

Enter the title of your new page into the box below and click the button. This will create a new page for you and start off the page with some boilerplate.


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To-do list for Information technology
  • CompTIA Certification Programs
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Related material on Wikiversity
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Guide to Information technology
The following is a dynamic listing of all the pages categorised into this portal. To restructure or extend this list, you will need to edit the category system itself. Where are the use instructions for this template?
VoIP
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