Crash Course Computer Science: Memory and Storage Quiz

What is the main difference between volatile and non-volatile memory?

• Non-volatile memory loses data when power is off.

• Volatile memory retains data without power.

• Non-volatile memory is always faster than volatile memory.

• Volatile memory loses data when power is off.

What was the storage capacity of a standardized punch card in the 1940s?

• 960 bits

• 5 megabytes

• 128 bits

• 1 kilobyte

What was the main drawback of punch cards as a form of memory?

• They were slow and write-once.

• They were too expensive.

• They required a lot of power.

• They were not durable.

How did Delay Line Memory store data?

• Using light pulses.

• Using electrical charges.

• Using pressure waves in a liquid.

• Using magnetic fields.

What was a significant limitation of Delay Line Memory?

• It could only read one bit of data at a time.

• It required too much power.

• It was too expensive to produce.

• It was not reliable.

What technology surpassed Delay Line Memory in the mid-1950s?

• Solid state drives

• Magnetic tape

• Optical storage

• Magnetic core memory

What was the first big use of magnetic core memory?

• RAMAC 305

• Whirlwind 1

• ENIAC

• UNIVAC

What was a major advantage of magnetic core memory over delay line memory?

• It used less power.

• It was faster to produce.

• It allowed random access to any bit.

• It was cheaper.

What was the main drawback of magnetic tape storage?

• It was not durable.

• It had slow access speed.

• It was too expensive.

• It required a lot of power.

What technology did magnetic drum memory directly lead to?

• Solid state drives

• Hard disk drives

• Optical storage

• Magnetic tape