def keyboard$\_$input$()$:

$$ return random.choice$(\text{'}$ABCDEFGHIJKLMNOPQRSTUVWXYZ$\text{'})$

def display$\_$output$($data$)$:

$$ print$($f$"$Display: $\{$data$\}")$

def disk$\_$io$()$:

$$ time.sleep$(2)$

$$ print$("$Disk I$/$O completed"$)$

def network$\_$io$()$:

$$ time.sleep$(1\mathrm{.}5)$

$$ print$("$Network I$/$O completed"$)$

Make a correction and give me a output