If your PC has a Emulation program for the original Playstation you would still not be able to play a game you do not have.
No you need the PS1 emulator program to play the play them
With an emulator for the Playstation games
You need to have a PS1 emulator complete with bios to play a game on your laptop.
With a emulator for the PS1
With a emulator program for the PS1
You don't change the games and instead change your PC with an emulator to be able to play a PS1 game
You don't. Games are software developed for the product they were designed for and only another device with an emulator program to mimic that device can play them. A PS1 could not run an emulator program for PC games
Just use Psx Ps1 Emulator and download rom's But only if you already have purchased the game itself
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First you have to download the emulator itself, I'd recommend EPSXE, it works well for me. Second you need a BIOS (you need to have a PS1 to legally get one), a video plug-in, and a sound plug-in. Last you need either game disks or ISO files of the games you want to play.
The PC will not play ps1 or ps2 games without an emulator
With an emulator program and the ability to understand and set it up