Hello! Did you missed playing with your Playstation 1 Games? Especially when your just a little kid back then and you already forgot some of the games you played? Back then we don't have a Facebook or a Twitter or some other social network accounts and if the only thing you enjoyed back then is playing with your PS1 and if you really missed those days and you want to play it again from your PC for free then you need to download and install the Playstation Emulator or "PSX" you can emulate your PS1 Games easily from your computer as long as it meets a minimum system requirements then you can easily download the games on google just look for the games you want and then you can mount the virtual drive directly and play!
The first time i heard about this, i was shocked! I never thought that it is possible to emulate the Playstation from you computer and when i tried it, it actually worked! And the rendering is good too. You can use either your keyboard or Joystick (If you have one for PC). You can play all types of PS1 games from A to Z and 0-9 title and there are bunch of free PS1 games to download out there just search for it if whatever games you like to play. But not all games will work because there is some games that contains glitch or bug i think that's just the way it is but if it has a patch then those stuff will disappear.
If you want to play then go ahead just search on google but just make sure to watch youtube videos on how to guide to download or install and mount a game to the emulator so that you will know how to operate and setup.
Do not download any suspicious files make sure you have anti-virus also for your Computer Protection. The PSX will run both PC and Laptop i think it i will run from windows 98 to latest or Linux and Mac just search for it then you'll find all the answers you need. Enjoy!