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Computer History, gadgets and e-waste

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Brenda Orozco

on 10 September 2013

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Transcript of Computer History, gadgets and e-waste

Third Generation
Computer History
gadgets and e-waste
Computer
GENERATIONS
Energy star program
E-waste:
what is it?
Its all the electronic waste, discarded electronic devices.
How can we get rid of the e-waste in Mexico?
"Who invented the computer?" Is not a question with a simple answer. The real answer is that many inventors contributed to the history of computers and that
a computer is a complex piece of machinery made up of many parts, each which can be considered a separate invention.
Fifth Generation
Forth Generation
Second Generation
First Generation
E-waste
* Tubes similar to lightbulbs.
* Assembly language or machines.
* Big and expensive, the space it occupied was of a full room.
* Tubes were replaced by transistors.
* Language was easier.
* Computers were smaller and cheaper.
* Chips with transistors and electronic circuits.
* Operative systems developed and new languages.
* Smaller computers





* Increasing the speed.
* Programming languages and application programs.
* PCs were created.
* Computers work simultaneously (global) thanks to the INTERNET.
1617 - The scottish John Napier made a manual device for multiplying and dividing.
1642 - Blaise Pascar invented the "pascalina" a device that added and substracted, with gears or wheels that spin in series.
1694 - Based on the gears G. W. Leibnitz created a device that multiplied and divided.
* Charles Babbage (computer´s father), came up with the idea of a device that had input, processing storage and output.
1890 - Herman Hollerith and James Powers created a machine that would help people count.
* COMERCIALIZATION...
Gadgets and Widgets
* They both work in the same way
* It only works on a certain website or on a specific set of websites
* A piece of reusable code that you can plug virtually into any website.
Gadgets
Widgets
Gadgets
small tool that has a particular function
Advantages

Disadvantages
* Good quality of video and audio.
* Portable
* You can install small, personal aplications.
* Users might reduce their personal interaction.
* The period of replacement of these devices is short.
* They can be used for bad purposes.
ENERGY STAR is a U. S. environmental protection Agency voluntary program that helps businesses and individuals save money and protect our climate through superior energy efficient.
Responsible maintainance.
Donate old or broken electronics.
Recycle
All companies should have their own recycling system.
Green Computers
3 green computer suggestions
1st
* Use a blank or dark Screensaver to conserve energy.
2nd
* Buy equipment that is ¨Energy Star¨ compliant.
3rd
If you are going to be away from your computer for more than 15 minutes, turn off your computer monitor.
It has aproximatelly 60 chemicals, some are valuable, dangerous, and some others are the 2 things at the same time.
Conceptual Map
Sources
http://it.rockefeller.edu/index.php?page=greencomputing
http://webtrends.about.com/od/widgets/a/widgetgadget.htm
http://www.energystar.gov/
Introducción a las tecnologías de información Volumen 1
http://inventors.about.com/library/blcoindex.htm
http://EzineArticles.com/1095125
Activity
Made by:
* Nena A01227633
* Malena A01227700
* Sofia A012299886
* Ana A01228568
*BrendaA01228570
Thanks for your attention!
INDEX
Computer History...........................6
Computer Generations.................8
Gadgets and Widgets....................14
E-waste.................................................17
¨Energy Star¨ program................21
Green Computers..............................24
Activity......................................................30
Conceptual Map....................................32
Sources.......................................................33
Full transcript