Back in the day, my primary school paid the printer company (I think it was Epson at the time) $400 (which was a lot of money back then) to "upgrade" the school

Back in the day, my primary school paid the printer company (I think it was Epson at the time) $400 (which was a lot of money back then) to "upgrade" the school's (we only had 2 printers for the whole school) printers from black and white to colour. Lo and behold, he opened it up and flipped a single dip switch.