The Atanasoff-Berry Computer (ABC)
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Questions and Answers

Who designed and built the Atanasoff-Berry Computer (ABC)?

  • Iowa State College
  • John Mauchly
  • Clifford Berry
  • John Vincent Atanasoff (correct)
  • When was the full-scale machine of the ABC completed?

  • 1939
  • 1997
  • 1942 (correct)
  • 1973
  • What was the legal result of the patent dispute related to the invention of the computer?

  • Atanasoff was declared the originator of several basic computer ideas
  • ENIAC co-designer John Mauchly had seen the ABC shortly after it became functional
  • The computer as a concept was declared un-patentable
  • All of the above (correct)
  • What does the completion of a full-scale working replica of the ABC in 1997 prove?

    <p>The ABC machine functioned as Atanasoff had claimed (B)</p> Signup and view all the answers

    Who was declared the originator of several basic computer ideas?

    <p>John Vincent Atanasoff (C)</p> Signup and view all the answers

    Where is the replica of the ABC currently on display?

    <p>Computer History Museum (C)</p> Signup and view all the answers

    What was the outcome of the patent dispute related to the invention of the computer?

    <p>The ABC was declared un-patentable (D)</p> Signup and view all the answers

    Which company was founded in a garage workshop in Palo Alto, California?

    <p>Hewlett-Packard (A)</p> Signup and view all the answers

    What did George Stibitz use relays for in his demonstration adder?

    <p>Creating a computer model (D)</p> Signup and view all the answers

    What did Konrad Zuse use telephone company relays for in his Z2 computer?

    <p>Building a complex calculator (B)</p> Signup and view all the answers

    Which computer used unusual 12-hole paper tape?

    <p>CSIRAC (C)</p> Signup and view all the answers

    Which computer used vacuum tubes and mercury delay lines for memory?

    <p>EDSAC (C)</p> Signup and view all the answers

    Which computer used a magnetic drum for memory and was originally created for a nuclear missile design project?

    <p>MADDIDA (B)</p> Signup and view all the answers

    Who conceived the Harvard Mark 1?

    <p>Howard Aiken (A)</p> Signup and view all the answers

    Which technology eliminated the need for more clumsy methods of programming such as plugboards and punched cards?

    <p>Electronic storage of programming information and data (A)</p> Signup and view all the answers

    What was the first program in history to run on a digital, electronic, stored-program computer?

    <p>Small-Scale Experimental Machine (B)</p> Signup and view all the answers

    Which early computer used 2,300 relays and performed floating point binary arithmetic?

    <p>Z3 Computer (C)</p> Signup and view all the answers

    Who designed and built the first Bombe, an electro-mechanical device used for decrypting Nazi ENIGMA-based military communications?

    <p>Alan Turing (D)</p> Signup and view all the answers

    What was the purpose of the Colossus machine designed by Tommy Flowers?

    <p>To break the Lorenz ciphers used by the Nazis (B)</p> Signup and view all the answers

    Which computer was the first to use all-diode logic, a technology more reliable than vacuum tubes?

    <p>SEAC (C)</p> Signup and view all the answers

    Who made the world's first scanned image on the SEAC in 1957?

    <p>Russell Kirsch (B)</p> Signup and view all the answers

    Which computer was the first commercially available general-purpose computer?

    <p>Ferranti Mark I (D)</p> Signup and view all the answers

    Who was Johnniac named after?

    <p>John von Neumann (D)</p> Signup and view all the answers

    Which system allowed many users to simultaneously access Johnniac?

    <p>JOSS (D)</p> Signup and view all the answers

    What was the first mass-produced computer by IBM?

    <p>IBM 650 (C)</p> Signup and view all the answers

    What was the purpose of the 1954 IBM 650 magnetic drum calculator?

    <p>Scientific and engineering calculations (C)</p> Signup and view all the answers

    What was repeatedly expanded and improved throughout its 13-year lifespan?

    <p>Johnniac (B)</p> Signup and view all the answers

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