Part 3: Early Computers

ENIAC = Calculating trajectory tables of newly developed weapons Colossus = Breaking German code messages during World War II ABC = General-purpose computing EDVAC = Weather prediction

Konrad Zuse = Creating sophisticated calculators Alan Turing = Designing the Colossus J.P.Eckert = Inventing the EDVAC Atanasoff = Developing the first electronic computer

ENIAC = Storing data and being programmable by wiring EDVAC = Using vacuum tubes ABC = Storing instructions as well as data Colossus = Using transistors

<p>1930s = Creation of sophisticated calculators by Konrad Zuse 1943 = Building of computers for the German army by Konrad Zuse 1945 = Completion of the ENIAC 1950s = Replacement of vacuum tubes with transistors</p> Signup and view all the answers

<p>ENIAC = Weighed 80 tons and used 1,800 square feet of floor space Colossus = Exclusively used for breaking German code messages ABC = First electronic computer using vacuum tubes EDVAC = Capable of storing instructions as well as data</p> Signup and view all the answers

<p>Charles Babbage = Breaking complicated calculations down into small operations and the first attempt at programming Herman Hollerith = Bridging the gap between the mechanical era and the new age of electronic computers George Boole = Defining the binary system used by all future computers J.V. Atanasoff = Designing the first all-electronic computer using Boolean algebra</p> Signup and view all the answers

<p>Vacuum tubes = About a thousand times faster than mechanical switches Transistors = Smaller and replaced vacuum tubes in the 1950s Electromechanical relays = Used in mechanical switches Boolean algebra = Used in designing the first all-electronic computer</p> Signup and view all the answers

<p>Electronic calculator = Performing specific calculations Electronic computer = Performing general-purpose calculations Mechanical switches = Used in early computers Binary system = Stating mathematical calculations as true or false</p> Signup and view all the answers

<p>Design of the first all-electronic computer = 1940s Replacement of vacuum tubes with transistors = 1950s Work of Charles Babbage = 19th century Breakthroughs in calculator development = Multiple decades</p> Signup and view all the answers

<p>Charles Babbage and Herman Hollerith = Paved the way for further progress J.V. Atanasoff and Clifford Berry = Designed the first all-electronic computer together George Boole and Boolean algebra = Defined the binary system Calculator and computer development = Breakthroughs in one preceded breakthroughs in the other</p> Signup and view all the answers