Understanding von Neumann Architecture

What does a fixed-program computer do?

• Requires physical modifications to alter its program.

• Automatically updates its software for different tasks.

• Stores programs in memory for easy modification.

• Performs a variety of tasks without needing changes to its hardware.

Who is credited with describing the first design for a stored-program computer?

• Alan Turing

• Jon von Neumann

• Charles Babbage

• Ada Lovelace

What is NOT a key characteristic of von Neumann architecture?

• An arithmetic logic unit (ALU)

• Multiple control units

• On-board cache

• An internal clock

What does the program counter do?

• Stores the result of calculations

• Holds data fetched from memory

• Holds the address of the next instruction

• Decodes the fetched instructions

What is stored in the memory data register?

• The address of where data is to be fetched or stored

• The address of the next instruction

• Data fetched from or to be written to memory

• The result of ALU calculations

What is the purpose of the accumulator?

• To hold the memory address of the next instruction

• To decode instructions

• To store the results of ALU operations

• To fetch instructions from memory

During the fetch stage of the fetch-execute cycle, what happens to the program counter?

• It is reset to zero.

• It decodes the fetched instruction.

• Its contents are incremented by one.

• It holds the data to be executed.

In the advanced fetch-execute cycle, what is the first instruction executed?

• "Load Address 5"

• "End Program"

• "Add Address 6"

• "Store Address 6"

How does the CPU handle cache overflow?

• It increases the cache size automatically.

• It deletes the oldest items first.

• It decides what to remove based on usage.

• It stops the program execution.

What was the result of the program executed in the video?

• The sum of 12 and 23 stored back into memory

• A multiplication of two numbers

• A subtraction operation

• An error due to overflow