Microcontrollers Quiz

What is the architecture type of the 8051 microcontroller?

• Von Neumann Architecture

• Harvard Architecture

• RISC Architecture

• CISC Architecture

Which of the following is NOT a feature of the 8051 microcontroller?

• 4K bytes internal ROM

• 128 bytes internal RAM

• 16-bit timers

• 8-bit data bus

What is the maximum 8-bit number in the 8051 microcontroller?

• 80

• 00

• 7F

• FF

Which pin provides the supply voltage to the 8051 microcontroller?

• GND

• Vcc

• XTAL1

• RST

What is the primary function of the ALU in the 8051 microcontroller?

• Manage memory access

• Perform arithmetic and logical operations

• Control input/output ports

• Store data

Which of the following is an application of microcontrollers?

• Web Servers

• Game Development

• Washing Machines

• Personal Computers

What is the function of the PSEN pin in the 8051 microcontroller?

• Reset the microcontroller

• Enable program memory access

• Provide external clock

• Supply voltage

How many general-purpose I/O ports does the 8051 microcontroller have?

• 4

• 2

• 8

• 16

What is the role of the EA pin in the 8051 microcontroller?

• To provide clock signals

• To supply power

• To reset the microcontroller

• To enable external memory access

Which of the following is a characteristic of a microcontroller compared to a microprocessor?

• More complex architecture

• Higher power consumption

• More external components required

• Designed for specific tasks