Crash Course Computer Science # 2

What was one of the primary uses of the Harvard Mark I computer?

• Decoding enemy communications during World War II

• Running simulations for the Manhattan Project

• Controlling mechanical systems in factories

• Automating census data processing

What analogy is used to explain the function of a relay in computing?

• A light switch

• A water faucet

• A door hinge

• A car engine

What was a significant limitation of electro-mechanical relays?

• They could only perform simple calculations

• They could switch states millions of times per second

• Their mechanical parts wore out over time

• They were too small to be practical

Who developed the first vacuum tube?

• John Bardeen

• Lee de Forest

• John Ambrose Fleming

• William Shockley

What marked the shift from electro-mechanical computing to electronic computing?

• The creation of the first integrated circuit

• The widespread use of vacuum tubes in computers

• The development of the ENIAC

• The invention of the transistor

What was the Colossus Mk 1 primarily used for?

• Automating industrial manufacturing processes

• Running simulations for space exploration

• Decoding Nazi communications during World War II

• Performing complex mathematical operations

What was a major advantage of transistors over vacuum tubes?

• Transistors were larger and easier to manufacture

• Transistors had no moving parts and could switch faster

• Transistors could only switch a few times per second

• Transistors required more power to operate

What was the significance of the IBM 608?

• It was the first computer to be programmed with a high-level language

• It was the first computer to use an integrated circuit

• It was the first fully transistor-powered, commercially-available computer

• It was the first computer to use vacuum tubes

Which material is most commonly used to create semiconductors?

• Gold

• Copper

• Plastic

• Silicon

What region is known as the birthplace of semiconductor development?

• Silicon Valley

• Boston

• New York City

• Tokyo