Please enable JavaScript.
Coggle requires JavaScript to display documents.
History of the computer (ENIAC - Electronic Numerical Integrator And…
History of the computer
The Abacus Inventor:
Blaise Pascal 
It's a simple machine that can add, subtract, multiply, divide, exponents, and square roots
-
The function is:
➢ Input - user slides beads
➢ Output - beads show results of calculations
➢ Process - user needs to do processing (special tricks make this faster)
➢ Storage - beads remain in place until further use
The slide ruler
-
Used for working with square roots, but can also add subtract, multiply, divide,
The Pascaline Calculators
Was designed for the accountants, surveyors, and scientists
-
-
The Jacquard Loom
-
-
The Difference Machine Designed by Charles Babbage
-
-
➢ Input - user programs computer by setting desired number values to each column
➢ Process - user turns a crank when they are ready to process
➢ Output - displays results when finished with calculations
➢ Store - programmed “code” is saved until someone changes it
Alan Turing and Hut 8
-
-
ENIAC - Electronic Numerical Integrator And Computer
-
-
-
➢ Input - user’s adjusted switches and wires to achieve desired input (sometimes took weeks)
➢ Process - turn ENIAC on and it starts calculating
➢ Output - ENIAC had 20 output components that displayed results of calculations
➢ Storage - unless user switched around the wiring and settings, ENIAC stored their data
Integrated Circuits and Transistors
-
Integrated Circuits - Soon after the invention of the transistor, people started linking them together into integrated circuits,
-
Personal Computers
-
Programma 101 - world’s first commercially available personal computer,
ARPANET
ARPA, spent much of the 60’s and 70’s developing ARPANET, the earliest version of the Internet
-
Personal Computers (1980’s & 1990’s )
Became faster, smarter, and inexpensive
Apple, windows, etc. became more popular
Modern Computers (2000’s and on)
-
-