When was the first mechanical adding machine invented?

• 1264

• 1426

• 1462

• 1642

What year did electronics enter the computer scene?

• 1918

• 1919

• 1920

• 1921

In modern digital computers, circuits that store information, perform arithmetic operations, and control the timing sequences are known as what?

• Flip-flops

• Amplifiers

• Oscillators

• Multipliers

When was the UNIVAC I developed?

• 1944

• 1946

• 1950

• 1951

The field of research that is developing computer systems which mimic human thought in a specific area and improve performance with experience and operation is what field of research?

• Human intelligence

• Artificial intelligence

• Animal intelligence

• Computer intelligence

In early electronic computers, what was the weak link in electrical computations?

• Transistors

• Resistors

• Vacuum tubes

• Capacitors

What is another name for thermionic emission?

• The gap effect

• The heat effect

• The Edison effect

• The Fleming effect

Electrons emitted by a hot filament are able to cross the gap between the filament and the plate. What force enables them to do this?

• Magnetic repulsion

• Inductive reactance

• Thermionic emission

• Electrostatic attraction

The getter in an electron tube serves what purpose?

• It protects the plate from overheating

• It allows the cathode to emit more electrons

• It helps to produce a better vacuum

• It anchors the tube elements in the base

Why does control grid voltage of a triode exercise greater control than plate voltage over conduction of the tube?

• The grid is operated at a higher voltage than the plate

• The grid adds electrons to the electron stream

• The grid is closer to the plate than the filament

• The grid is closer to the filament than the plate