MC-CO1

1. Which of the following best defines a microprocessor?

• A) A small-sized computer
• B) A programmable device that processes digital data
• C) A high-speed memory device
• D) A power supply unit

2. The main difference between a microprocessor and a microcontroller is that a microcontroller includes:

• A) Only the CPU
• B) CPU, memory, and peripherals on a single chip
• C) Only external memory
• D) A graphics processing unit (GPU)

3. The 8051 microcontroller belongs to which family of microcontrollers?

• A) PIC
• B) ARM
• C) 8051
• D) MIPS

4. How many general-purpose registers does the 8051 microcontroller have?

• A) 8
• B) 16
• C) 31
• D) 64

5. In the 8051 microcontroller, the Program Status Word (PSW) register is used to store:

• A) Data memory
• B) Control signals
• C) Status flags and control bits
• D) Peripheral addresses

6. What is the size of the internal RAM in the standard 8051 microcontroller?

• A) 64 bytes
• B) 128 bytes
• C) 256 bytes
• D) 512 bytes

7. What is the purpose of the DPTR (Data Pointer) register in the 8051 microcontroller?

• A) It is used for stack operations
• B) It holds the address of program memory
• C) It is used to access external memory
• D) It controls the timers

8. The 8051 microcontroller's architecture is based on which type of memory organization?

• A) Von Neumann architecture
• B) Harvard architecture
• C) Princeton architecture
• D) RISC architecture

9. How many bits wide is the Program Status Word (PSW) register in the 8051?

• A) 4 bits
• B) 8 bits
• C) 16 bits
• D) 32 bits

10. In the 8051 microcontroller, which memory stores the program code?

• A) RAM
• B) ROM
• C) Cache memory
• D) External SRAM