LOL!
This reminds me that (sadly) I'm old enough to have been at school when the first calculators started appearing.
I remember 'Texas' and 'Casio' brands, complete with red and green LED displays respectively, were considered among the more desirable by my peers.
I also remember that the 'status' of your calculator depended to some extent on whether it sported a memory function or not; but the single most important feature, without doubt on those early models, was whether it had a 'square root' button or not. If your calculator had one, you were truly among the elite! Their owners looked down on us mere mortals, using just our slide rules and log tables, and only being accurate to the odd decimal place.
I did eventually join the 'square root club', but I was sad enough that, until then, I'd memorised the square roots of every number from 2 to 10 to the required seven decimal places
