One of the defining features of Artificial Intelligence is the ability to solve problems.

Consider these three pieces of computer technology:

$1.$ Pocket calculator

$2.$ Spreadsheet software $($e$.$g$.$ Excel, Google Sheets$)$

$3.$ Self$-$driving car

Compare these three pieces of computer technology with regards to the ability to solve problems. Which piece$($s$)$ of technology count as AI$,$ with regards to this ability? Why?