Basically around the 2000s we had a WinXP computer and each time I wanted to use it, either my mom or my dad had to turn it on. However they had to strike the key to enter the BIOS. Everytime when booting the PC. Then they would exit the BIOS and so Windows XP would boot normally.
Do you guys know if your parents also did that and why?
Bios was not set up correctly, or it did not detect the keyboard and was set to fail into bios in that case.
There was no real standard of behaviour that was adhered to for early PCs, so different hardware acted very differently. Standards that were adopted like USB were often implemented in incomplete or incompatible ways.