An emulator is a piece of software or hardware that emulates, or imitates, a video game console.
Many people emulate software to experience old memories.
Usually people emulate old games from thier childhood though this can cause many legal. issues

One problem with emulation is the legalty of roms.
If you did not orginally buy the software when it realsed and tediously dumped it to your computer
you could be legally perscuted for piracy.
This has not stopped people from illegaly downloading roms.
Its essentially the norm to get roms from gaint illegal rom libraries on the internet.

By the mid-1990s,
personal computers had progressed to the point where it was posssible to emulate the behavior of some of the earliest consoles entirely through software.
Programs like Marat Fayzullin's iNES, VirtualGameBoy, Pasofami (NES), Super Pasofami (SNES), and VSMC (SNES) were the most popular console emulators of this era
