Section 1 Vocab and People

designed 2 mechanical calculating devices: difference and analytical engines

• Charles Babbage

• Ada Lovelace

• Herman Hollerith

• Alan Turing

Is often credited with writing the first “computer program” (for the Analytical Engine).

• Charles Babbage

• Ada Lovelace

• Herman Hollerith

• Alan Turing

invented a tabulating machine used in the 1890 U.S. Census; his company became IBM

• Vannevar Bush

• Ada Lovelace

• Herman Hollerith

• Alan Turing

developed a theoretical model of what a computer can and cannot do

• Vannevar Bush

• Howard Aiken

• John Atanasoff

• Alan Turing

created the Differential Analyzer, an early analog computer

• Vannevar Bush

• Howard Aiken

• John Atanasoff

• Konrad Zuse

designed the Harvard Mark I, an early electromechanical computer built by IBM

• Ada Lovelace

• Howard Aiken

• John Atanasoff

• Konrad Zuse

creator of the Atanasoff-Berry Computer, an early electromechanical computer

• Ada Lovelace

• Alan Turing

• John Atanasoff

• Konrad Zuse

engineer who created several early computers in pre- and postwar Germany

• Ada Lovelace

• Alan Turing

• John Atanasoff

• Konrad Zuse

an early form of mechanical calculator, mass-produced in the early twentieth century and sold as office equipment

• adding machine

• Turing machine

• algorithm

• analytical engine

a precise, step-by-step list of instructions for accomplishing a given task;

• adding machine

• Turing machine

• algorithm

• analytical engine