Unit 1 - Y10 CPU Architecture

Which of these are not steps in the Fetch Decode Execute Cycle?

• Instructions are fetched from main memory

• Instructions are decoded in the control unit

• The decoded instruction is executed

• The ALU decodes the instructions

• The program counter transfers the data to be decoded to the MDR

Which of the following stores the results of calculations?

• Accumulator

• ALU

• MDR

• CU

Which component of the CPU would calculate the result of 12 multiplied by 2?

• Accumulator

• ALU

• MDR

• CU

What is the purpose of the CPU?

• To process all the data and instructions.

• To Power the Computer

• To Speed up the computer

What is the main function of the CPU?

• To carry out processing the data

• To fetch instructions from memory, decode them and execute the instructions

• to fetch data from memory and process it.

what does the Program Counter (PC) do?

• it contains the memory address of the next instruction to be loaded

• It carries out the calculations

• It stored Data

• It controls the other parts of the CPU

Which of the following is main memory?

• Hard Drive

• Solid State Drive

• RAM

• ROM

The CPU carries out a cycle called...?

• Fetch-Decode-Execute

• Decode-Fetch-Execute

• Fetch-Decipher-Execute

what does the Control Unit (CU) do?

• it contains the memory address of the next instruction to be loaded

• It carries out the calculations

• Decodes the instruction and decides if data needs to be fetched

• It controls the other parts of the CPU

what does the Memory Address Register (MAR) do?

• it contains the memory address of the next instruction to be loaded

• It contains the next instruction to be executed

• Decodes the instruction and decides if data needs to be fetched

• It controls the other parts of the CPU