Question

What is interfacing in microprocessor and why it is needed?

Answer 1

Interfacing a microprocessor is to connect it with various peripherals to perform various operations to obtain a desired output.

Memory Interfacing and I/O Interfacing are the two main types of interfacing.

Memory Interfacing is used when the microprocessor needs to access memory frequently for reading and writing data stored in the memory . It is used when reading/writing to a specific register of a memory chip.

I/O Interfacing is achieved by connecting keyboard(input) and display monitors(output) with the microprocessor.