Computers and Transistors

What is the foundational invention that almost everything else relies upon in computers?

• The vacuum tube

• The diode

• The transistor

• The abacus

What type of math do most computers use?

• Calculus

• Arithmetic

• Geometry

• Boolean logic

What are the two possible values in Boolean logic?

• High and low

• On and off

• True and false

• Positive and negative

Which logical operation is performed by an 'and gate'?

• Addition

• Negation

• Disjunction

• Conjunction

What device did early electronic computers use before the transistor?

• The triode

• The diode

• The abacus

• The vacuum tube

What is the advantage of using transistors instead of vacuum tubes?

• They are more reliable

• All of the above

• They are smaller

• They use less power

How many transistors can be contained in a fingernail-sized microchip?

• Billions

• Thousands

• Millions

• Trillions

What is the main function of a transistor?

• To control electric current

• To perform mathematical operations

• To amplify signals

• To represent numbers

What is the name of the special region that forms between the emitter and base of a transistor?

• The P-N junction

• The triode

• The vacuum tube

• The diode