You could absolutely download a BASIC interpreter for a phone (quick google search found at least a few for both iOS and Android). That alone is on par with wha

You could absolutely download a BASIC interpreter for a phone (quick google search found at least a few for both iOS and Android). That alone is on par with what you could do with most old computers. And with a modern PC you can write software for iOS or Android (or for the computer itself) leagues more complex than almost anything that even existed 30 years ago.