Computer Function Quiz

What is the basic function performed by a computer?

• Execution of a program

• Network communication

• Data storage

• User interface design

What are the two steps of the Instructions Cycle?

• Fetch and Decode

• Fetch and Execute

• Read and Write

• Load and Store

What does the Program Counter (PC) hold?

• The result of the last operation

• The total number of instructions

• The address of the next instruction

• The current instruction

What happens during the Fetch Cycle?

• Output is displayed

• Instruction is fetched from memory

• Data is processed

• Data is transferred to I/O

What is loaded into the Instruction Register (IR)?

• The result of the execution

• The fetched instruction

• The address of the next instruction

• The contents of the Program Counter

What does the Execute Cycle involve?

• Storing data in memory

• Incrementing the Program Counter

• Interpreting instruction and performing actions

• Fetching the next instruction

What does the first hexadecimal digit in IR indicate?

• The data to be stored

• The next instruction to execute

• The operation to be performed

• The address to be fetched

What is the result of adding the old contents of AC and the contents of location 941?

• Stored in the Instruction Register

• Stored in location 941

• Stored in the Program Counter

• Stored in the Memory Address Register

What does the term 'Control' refer to in the Execute Cycle?

• Arithmetic operations on data

• Fetching instructions from memory

• Altering the sequence of operations

• Data transfer between CPU and memory

What is the purpose of the Memory Address Register (MAR)?

• To hold the result of the last operation

• To hold the address of the data to be fetched

• To hold the data to be processed

• To hold the address of the next instruction