8085 Microprocessor Quiz

In the context of the 8085 microprocessor, what does the STA instruction do?

• Loads data from a memory address into the accumulator

• Stores data from the accumulator into a specified memory address

• Copies data between two registers

• Reads data from an input device

What is the purpose of the MOV instruction in the 8085 microprocessor?

• To load data from memory into a register

• To read data from an input device

• To copy data from one register to another

• To store data from the accumulator into memory

Which of the following is NOT a type of data transfer operation in the 8085 microprocessor?

• I/O to Register Transfer

• Data to Memory Transfer

• Memory to Register Transfer

• Register to Register Transfer

What type of data transfer operation involves moving data from a memory location to a register?

• Register to Register Transfer

• Register to Memory Transfer

• I/O to Register Transfer

• Memory to Register Transfer

What is the primary purpose of data transfer operations in the 8085 microprocessor?

• To execute arithmetic calculations

• To enable the CPU to manipulate data efficiently

• To display data on the screen

• To store data permanently

Which of the following statements is true regarding data transfer operations in the 8085 microprocessor?

• They do not involve I/O devices

• They are essential for program execution

• They can only transfer data to memory

• They only occur between registers

What instruction is used to copy data from one register to another in the 8085 microprocessor?

• OUT

• STA

• MOV

• LDA

In the context of the 8085 microprocessor, what does the LDA instruction do?

• Reads data from an input device

• Copies data between two registers

• Loads data from a memory address into the accumulator

• Stores data from the accumulator into memory

How can the process of I/O to Register Transfer be best described?

• Loading data from memory into a register

• Transferring data from one register to another

• Storing data from the accumulator into memory

• Reading data from an input device into the accumulator

Which instruction is used to send data from the accumulator to an output device?

• STA

• MOV

• OUT

• IN