How many bytes of RAM does the 8051 microcontroller have?

Which of the following pins is an input pin?

What type of memory is typically used in microcontrollers?

The 8255 is a _______ chip.

In looping, what is the maximum number of Iterations we can achieve in 8051.

And how is that possible.

Which of the following software is used for programming a microcontroller?

What type of communication protocol is commonly used to exchange data between components in microcontroller systems?

What does the "CJNE" instruction in 8051 do?

What will be the final status of the carry flag(CY) and parity flag(P) after the execution of the following code?

MOV A, #CCH

ADD A, #E6H

Why are opto-isolators normally used between the microcontrollers and the ULN2803?