Not every pin on a micro controller is equal. Some have unique capabilities, like for example to allow the attachment of an interrupt service routine.

Look at the Documentation for Arduino UNO and select all pins that support interrupts.

What needs to be put in the <missing line> of the following shell script to launch all three programs with the value 10 as parameter?

Here you can find information about variables in the unix shell: https://www.cyberciti.biz/faq/set-environment-variable-unix/

__________

<missing line>
./prog1 $val
./prog2 $val
./prog3 $val

__________

http://man7.org/linux/man-pages/man2/getppid.2.html

https://en.wikipedia.org/wiki/Process_identifier

Which of the following

statements are true?

Which line would you use

to save the list of currently running processes into a file

processes.txt?

What does the program "top" do?