Before the use of technology such as computers, information was documented through papers separated in folders. This was a very long and complicated process as people would have to find information by hand, sorting through countless documents. Now, it is much easier and neater to keep information. It can be as easy as digitally searching for someone's name and the computer will sort through countless documents, finding the one you need almost instantly. It is also much less wasteful and safe, as before computers, the use of paper was the only way to permanently keep information, also making documents vulnerable to being lost or stolen.
Answer:
Mouse, Keyboard, Headphones, Charger.
Explanation:
These can be plugged into the computer for gaming and other uses.
For count digits, you could just convert it to a String and check the length
Sum digits, convert to string then seperate each character with charAt then convert it to numbers in the return statement.
Average digits you can convert it to a String and then convert them back after taking them apart.
