Keeping track of common files by using a lot of computers and mobiles all through the day may be hard. A good example is when you synchronized your mobile and computer devices. If you check an email using your computer, it will also appear in your smartphone. This will be a lot easier to track your email through both of your devices than having not to be synced at all.
Answer:
1. Declaration: the return type, the name of the function, and parameters (if any)
2. Definition: the body of the function (code to be executed)
Explanation:
The size of a monitor is not much larger. As these are used from a specific distance, it would be so inconvenient if a monitor size is too big.
