Question

9. several lines at the end of post are used to find the operating system. what is this called?

Answer 1

$\mathbb{\red{\huge{Hey\:mate}}}$☺️
$\boxed{Here\:is\:your\:@nswer}$
━━━━━━━━━━━━━━━━━━━$\mathfrak{\green{Answer.}}$Examples of Operating Systems. ... Some examples include versions of Microsoft Windows (like Windows 10, Windows 8, Windows 7, Windows Vista, and Windows XP), Apple's macOS (formerly OS X), iOS, Chrome OS, BlackBerry Tablet OS, and flavors of the open source operating system Linux.
━━━━━━━━━━━━━━━━━━━
$\huge{\bf{ \orange {\fbox{\underline{ \color{blue}{Follow\: Me}}}}}}$