How can a Microprocessor based computer system be developed?

How can a Microprocessor based computer system be developed?

In developing a Microprocessor based computer system the following steps are involved:

- The first step is to develop the CPU module.By doing so the basic system timing, sequential startup order is established.

- After that memory needs to be added: The primary memory is essential for the programs that are stored on the computer. There can be several forms of memories

with different hierarchies. The CPU loads and fetches instruction from the memory.

- The third step is adding input/output: There are basically two hardware techniques for getting data into and out of a computer.
i. The parallel interface is the most common and natural form.
ii. The serial interface is the second technique