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Computer Architecture Quiz

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Questions and Answers

Which component of a CPU is responsible for performing arithmetic and logical operations?

Arithmetic Logic Unit (ALU) (correct)

Control Unit

Input/Output Unit

Memory Unit

In the AVR architecture, what size are the registers in the register file?

64-bit

16-bit

32-bit

8-bit (correct)

What type of operations is the Status Register used for in the AVR architecture?

Flag Operations (correct)

Arithmetic Operations

Memory Operations

Control Operations

Which part of the CPU architecture is primarily responsible for changing the program flow based on conditional statements?

Status Register (D) Signup and view all the answers

Which type of addressing mode involves the register X, Y, or Z containing the address of a memory location which contains the address of an operand?

Indirect addressing (C) Signup and view all the answers

In the AVR CPU, what is the significance of registers R26 to R31?

They provide 16-bit address pointers for indirect addressing of the data space (B) Signup and view all the answers

What is the function of the register X, Y, and Z in AVR CPUs?

Provide 16-bit address pointers for indirect addressing (B) Signup and view all the answers

How is indirect addressing different from direct addressing in AVR CPUs?

Direct addressing accesses memory locations directly, while indirect addressing involves accessing addresses of operands (D) Signup and view all the answers

What role does the AVR CPU play in the microcontroller?

It executes instructions and controls the operation of the microcontroller (B) Signup and view all the answers

How does the Harvard Architecture differ from the Von Neumann Architecture?

In Harvard Architecture, data and instructions are stored in separate memory units, whereas in Von Neumann they are stored together (C) Signup and view all the answers

Why is the distinction between the data bus and address bus important in microcontroller design?

The data bus size influences the 'bitness' of the CPU, while the address bus enables memory access (A) Signup and view all the answers

In what way does the 8-bit nature of the AVR CPU affect its interaction with external memory?

It limits the amount of memory that can be addressed by the microcontroller (C) Signup and view all the answers