Hardware + Software.
What are they?
Hardware.
Hardware is a device that you can physically touch like:
-A phone
-A computer
-A laptop
-A washing machine
-A printer
-A microphone
-And many more.
Input.
Input is a place where or a device that information, energy or data goes in any system or process (like a computer).
A synonym to input is insert.
A keyboard is an example of input because the information in this case text data goes in to the computer it's plugged into.
Software.
Software is something that you cannot physically touch but is inside a device for example:
-Windows
-Microsoft
-Apple
-Games
-Programs
-Operating systems
-Utility
Output.
A place where information leaves a system. Deleting a photo is an example of output.