Here is a list of some popular emulators (100 download links) which emulate old 8/16-bit computers. So, you can play old games on your today machines.
Amstrad CPC 464/664/6128:
Apple II:
Atari:
BBC:
Commodore Amiga:
Commodore 64/128/VIC 20:
Jupiter Ace:
MS-DOS:
MSX:
fMSX - Windows / Linux / Android
openMSX - Windows / iOS / Android
Oric 1 / Oric Atmos:
TI99/4A:
TRS-80:
ZX80/ZX81:
ZX Spectrum:
P. Penski