Recently I have bought an Apple Macintosh Plus. Everything was working except one key on the keyboard. The previous owner just glued it permanently to disguise the damage. The key in question is the "Clear" key. It is not used very frequently, that is of course if you are not a heavy user of the Calculator Application. Nevertheless I wanted a fully functional keyboard, so I decided it to fix it.
MSX2 Philips NMS 8250 computer has a build-in double density (DD) floppy drive. There a various sites on the internet where you can download floppy disk images. For example on planetemu website you can browse MSX2 various disks section and "télécharger", as the site is in french language, and means "download".