Time which various systems were made that didn't need any mechanical effort, so it is called the pre - mechanical age of computers.
Communication:
-Sumerians in Mesopotamia southern Iraq invented cuniforms
-Greek and Romans named the Latin Alphabet
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| Abacus. |
Egypt 2600 B.C. invented Papyrus = Scrolls
China 100 A.D = Paper rays = papirus sheets.
Mesopotamian leaders kept the earliest "books".
Numeric systems:
The invention of the 0 by the Mayas.
The fisrt calculator was the abacus invented by John Napier.
The Mechanical era 1450 - 1840
—It was between 1450 and 1840.
Inventors began to use techniques and tools to create machines to conduct certain tasks.
Inventors began to use techniques and tools to create machines to conduct certain tasks.
Printing:
—Invented by Johann Gutenberg. Was one of the most outstanding machines, made accessible the information written to the general public and helped create new forms of Government with educated and cultured citizens.
The first table of the logarithms:
To simplify the calculations, by the Scottish John Napier.
Slide rule:
—It counted with two mobile scales graduating logarithms of quantities that were going to calculate. This was made by William Oughtred.
The first automatic calculator:
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| The pascaline. |
By Blaise Pascal. Is a tax collector who worked hard in the calculation of large arithmetic operations
The pascaline:
—Also called Arithmetic Machine. It could only do addition and subtraction with numbers being entered by manipulating its dials.
Gottfried von Leibniz innovated it adding componentsto multiply, divide, and extract square roots
The pascaline:
—Also called Arithmetic Machine. It could only do addition and subtraction with numbers being entered by manipulating its dials.
Gottfried von Leibniz innovated it adding componentsto multiply, divide, and extract square roots
Electromechanical Age
The discovery of ways to harness electricity was the key advance in this period.
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| Telegraph. |
Voltaic battery:
Invented by Alessandro Volta. It is considered as the first source of stored electricity in the 8th Century. It consists of two electrodes: one made of Zinc, the other of cooper.
Telegraph:
By Samuel F.J Morse in 1832
Telephone:
The first sucessful bi-directional transmition of clear speech, made by Bell and Watson.
Invented by Alessandro Volta. It is considered as the first source of stored electricity in the 8th Century. It consists of two electrodes: one made of Zinc, the other of cooper.
Telegraph:
By Samuel F.J Morse in 1832
Telephone:
The first sucessful bi-directional transmition of clear speech, made by Bell and Watson.
Radio:
Radiotelegraph by Marchese Guglielmo Marconi.
Radiotelegraph by Marchese Guglielmo Marconi.
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| Punched Cards. |
Electromecanical computing
Tabulating machine:Cappable of processing fifteen-digit numbers printing out results and rounding off eight digits. Made by Pehr and Edvard Scheutz.
Comptometer:
Is a type of mechanical adding machine.
Punched Cards:
Is a piece of stiff paper that contains digital information.
In the past, they used to use blood or pigments for communication.
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| TV. |
TV:
By John Logie Baird. The images that could be seen on TV consisted in recording the face of a mannequin.The television technology was developed by investigators in the U.S, Soviet Union and U.K.
The computer:
The first computer was the Z2. Later, the Z3 used binary numbers and floating point arithmetic, it also utilized a punched film for program input could convert decimal to binary and back again.
The mobile phone:
First mobile phone were two-radios that allowed people like taxi drivers and emergency to communicate.
The first was made by a Motorola employee; Martin Cooper.
MODERN MOBILE PHONE:
We use now 3G or 4G mobiles. 4G became commercially avaliable in the U.K in 2012 and offers super fast connection and speedy downloads.
Internet:
Beggins with the electronic computers in the 1950's, it represents one of the most successful examples of the benefist of information infrastructure Technology.
By John Logie Baird. The images that could be seen on TV consisted in recording the face of a mannequin.The television technology was developed by investigators in the U.S, Soviet Union and U.K.
The computer:
The first computer was the Z2. Later, the Z3 used binary numbers and floating point arithmetic, it also utilized a punched film for program input could convert decimal to binary and back again.
The mobile phone:
First mobile phone were two-radios that allowed people like taxi drivers and emergency to communicate.
The first was made by a Motorola employee; Martin Cooper.
MODERN MOBILE PHONE:
We use now 3G or 4G mobiles. 4G became commercially avaliable in the U.K in 2012 and offers super fast connection and speedy downloads.
Internet:
Beggins with the electronic computers in the 1950's, it represents one of the most successful examples of the benefist of information infrastructure Technology.
