Historia De La Computacion

Prehistory of Information era
Abacus (China, BC) Abacus is a calculating tool for performing arithmetic processes. It was invented in China.
Mechanical Calculator
 Pascal, France 1642
Leibniz, Germany 1670 Blaise Pascal invented the pascaline was the first computer based in running wheels and gears.

Leibniz is on of the most prolific inventors in the field of mechanicalcalculators.
Mechanical Computer
 Babbage, England 1830 Babbage was an English mathematician analytical philosopher and and the first computer scientist who originates the idea of a programmable computer.Start of the information era:
Fundamentals of electronic computers:
 Turing, England 30’s; Shannon and Von Neumann, United States 40’s John von Neumann established the mathematical framework forquantum mechanics in his work Mathematische Grundlagen der Quantenmechanik.
CHECAR MAS
First electronic computer: ENIAC
 University of Pennsylvania, USA, 40’s
 Tecnology vacuum tubes
programming: manual wiring ENIAC it was discovered for the ballistics research laboratory of the army of the U.S.A. Was desactived in October 2 of 1955 for ever.

Transistors were first developed in1947 by Bell Telephone laboratories. They replaced vacuum tubes, which were big, bulky, costly, and unreliable. Transistors are most often used to regulate the flow of an electrical current and to switchelectricity on and off.
Computer Generations:
First Generation (50’s)
 Built with vacuum tubes
 Batch processing, IBM 701 Bank of America installed a new IBM 701 computer consisting of acentral processors along with 17 tape drives and 16 other accessory units of various supports.
Second Generation (60’s)
 Built with transistors
 Multiprocessing
 Family of Computers IBM 360 Wasa mainframe computer system family announced by IBM on April 7, 1964, and delivered between 1965 and 1978. It was the first family of computers designed to cover the complete range of applications,...