By looking at your code, it seems like you're trying to let the user enter positive numbers until the user enters a negative number. To achieve this, you need to indent int(input("Enter a number, negative to stop")) inside the loop.
The second answer choice is correct.
USB port. That allows you to plug in devices.
A table cell contains one piece of data
No compiler can do that. Maybe with AI, but that's beyond the scope of a compiler.
Touch screen might be the answer
Hope this helps
