What is meant by Binary representation

Briefly give an answer to the following questions:
1-) What is meant by Binary representation
2-) List 2 components that computers are made of. What is the function of each component?
3-) What is the different between Input and Output devices? Give an example for each.

Your response should be 250-300 words (total answering all parts of the discussion question). Make sure you post your response by day 4 of the week and make sure you make two quality posts commenting on your classmates’ responses (and mine) before the end of the week.