sábado, abril 28, 2012

Precursores de la computadora.

Los precursores de la computadora son aquellos mecanismo o modos por los cuales el hombre buscó facilitarse varias de sus tareas sobre operaciones matemáticas, todo esto tuvo un proceso en el cual se usaron diferentes métodos y operaciones matemáticas y mecánicas para lograr crear los siguientes inventos:

Ábaco:



Este instrumento se usaba en la antigüedad para hacer cuentas el cual es un cuadro de madera  con alambres horizontales y paralelos y unas bolas enfiladas en éstos, que se usa para contar y en la enseñanza de la aritmética.




Regletas de Napier:

Fueron inventadas por el matemático escocés John Napier que estableció el logaritmo neperiano o natural y estableció esa noción mediante un proceso de multiplicación y división establecido mediante varillas o regletas de Napier.

Circulo de Proporción:

                                     

William Oghtred inventó los Círculos de Proporción los cuales estaban basados en los logaritmos de Napier, eran dos escalas logarítmicas idénticas ya sea de forma circular o lineal sostenidas y ajustadas por medio del uso de la mano.


Pascalina:

                                   

Blaise Pascal inventó la pascalina también llamada la máquina de la aritmética y fue considerada la primera calculadora, hecha entre 1642 y 1644, la inventó para su padre que era cobrador de impuestos así que también fue la primera máquina de negocios, si no se cuenta al ábaco. Solo podía hacer suma y resta. Después de varios años se hicieron diferentes versiones de esta ingeniosa maquina de operaciones.


Máquina de Leibnitz:

                                  

Gottfried Wilhelm von Leibniz mejoro el invento de la pascalina haciendo que esta pudiera sumar, restar, dividir, multiplicar e incluso sacar raíces, aparte de que se le atribuye que su máquina utilizaba el sistema binario.


Máquina Analítica:

                                  

Charles Babbage inventó la primera computadora digital a la cual le llamó Máquina Analítica, la cual tenía la capacidad de hacer cualquier operación aritmética por medio de insertarle unas tarjeta perforadas, tenía una unidad de memoria para almacenar los números, secuencia de control y algunos otros elementos básicos de las computadoras actuales.

ESCRITO POR ZinyxteR

Arturo Llamas, colaborador de Yume Project, promotor de la revolución 3.0, lector apasionado, sherlockian, fiel defensor de la verdad y la justicia, ajedrecista habitual, historiador y teórico en ciencias sociales, económicas y políticas. A través de la ciencia descubrimos el universo, a través de las ideas lo creamos. -El conocimiento es poder.
~El conocimiento es poder~

17 comentarios:

  1. This will help you to alter the quantity of blur easily and allow camera make other
    critical decisions when you are shooting. There is a host of in-camera editing options such as red-eye reduction,
    cropping, color balance, straightening, fish-eye effect, etc.
    In order to remove the lens, depress the lens
    release button and rotate the lens clockwise.


    my page - nikon d7100 review

    ResponderEliminar
  2. When we have comparisons about the applications between to
    the Nexus 7 or Kindle Fire HD and mini i - Pad, you can understand why customers would
    pay to have an bonus $ 129 with tremendous influential applications or
    the impression about the i - Pad mini. RM416-419,
    Sufa305 Building Huafabei Road, Futian District, Shenzhen, China.
    You've got a dual core 1 GHz Tegra 2 processor, 1 GB of RAM, a 4 inch touch screen display with a resolution of 950 x 540 pixels and a 5 MP camera with 720p video capture.

    my site - google nexus 7 tablet

    ResponderEliminar
  3. And customers, he said, must be able to find and access content that they desire.

    This software can convert DVD to various video formats such as MPEG-4,
    AVI, WMV, FLV, 3GP, VOB, etc. One of the biggest changes is
    the fact that Apple has removed the permanent storage (hard drive) from the
    device.

    My website apple tv review

    ResponderEliminar
  4. But, with the most recent turn of events, the i - Phone 5 has made a landmark in the smartphone industry.
    Both the displays are easily among the best, with the i - Phone 4 marginally leading the way in terms of
    display quality and the Galaxy S winning the size battle.
    The Samsung Galaxy S3 is, to begin with a LTE network compatible smartphone
    handset that is capable of handling speeds in the range of 30 to 60 mega bytes per second.



    Stop by my web blog - galaxy s4

    ResponderEliminar
  5. And powering its various affairs will be the dual core Nvidia Tegra
    2. A whole host of image enhancing features is provided as standard which allows users
    to manipulate and edit images and videos, including autofocus, touch-focus, face & smile detection as well as geo-tagging which functions based on GPS.

    1 is also known as Tab 750 and expected to be priced at Rs.



    Here is my page; samsung galaxy tab

    ResponderEliminar
  6. The Black - Berry Tablets media player will not disappoint you as this premier media player and video
    creation are supported by Codecs. The thinking is much cases are questionable to be settled within large bags time you length.
    Sources demonstrate that this newly designed solution designed to offer a streamlined framework for enterprises to unfurl mobile
    apps for Blackberry Play - Book tablet users within the
    organization.

    My webpage; playbook review

    ResponderEliminar
  7. Both services offer extra storage space for small fees if you need more.
    This removes mold, dirt, fungi or other debris from entering
    the home. The devices must be hooked to a power source and be connected to WI-FI for it to automatically back up.


    My web page ... nest thermostat review

    ResponderEliminar
  8. Section 1 - Choosing the Monochrome picture Control Section 2 - Modifying the Monochrome Picture Control.
    Make a list of your requirements, and then choose the right model for yourself.
    The wide open aperture should allow great low light shots with creative
    control over the aperture.

    my site canon 6d review

    ResponderEliminar
  9. Good site you have got here.. It's hard to find high-quality writing like yours these days. I honestly appreciate individuals like you! Take care!!

    My website :: http://vibrantvideos.com/read_blog/101227/a-background-in-no-fuss-secrets-in-seo-training

    ResponderEliminar
  10. Way cool! Some extremely valid points! I appreciate you writing this post and the rest
    of the site is very good.

    Here is my blog post: unblocked games at school and Work

    ResponderEliminar
  11. Do you have any video of that? I'd care to find out some additional information.

    my blog post: 3d superman tattoos

    ResponderEliminar
  12. They have heavier bone structure, a protracted physical stature, uniform shoulders as well as an even top line.
    May must slightly externally rotate the humerus to acquire a good view with the caudal humeral head (the predilection spot from the canine shoulder).

    This phenomenon can be isolated to your single event, as well
    as to something more permanent. The second layer or outer coat is rougher and supplies further protection for the
    inner coat. You might start German shepherd training informally in your own home
    when he reaches three weeks old.

    Have a look at my web page: german shepherd puppies for sale in ohio

    ResponderEliminar
  13. Este comentario ha sido eliminado por el autor.

    ResponderEliminar
  14. ahora podre terminar mi tarea!!! gracias por la info

    ResponderEliminar
  15. gracias ahora me ganare mis 25 puntos

    ResponderEliminar