Identify these devices based on whether they provide the user with input or output, or both. Monitor
Projector
Touchscreen
Mouse
Keyboard

Monitor - Output

Projector - Output

Touchscreen - Both

Mouse - Input

Keyboard - Input

Explanation:

answer; (d) i do believe the correct answer is a game that has raised horizontal surfaces for players to jump between; ///plz check first good luck;

well cos like a ds it doesn't really die out, unlike for example, fifa, they always come out with a new version, so lets say your fifa 18 is charging you to update the teams and stuff, so, if messi were to go to real madrid (never gonna happen) it would switch messi to the other team, until the owners of fifa come out with fifa 19, then the game would eventually stop updating, and back to the ds, it doesn't really stop working after sometime because there's lots of things that it could be used for, and idk if u know what i'm saying, but long story short, samsung, represents the ds, if they still work, and people love them but not the new version, the old version still works, so they don't really force people to buy new phones, get me?