If you looking for a Convert firewire connection to USB then this is the right place to find out the best ways to convert Firewire to USB and here you can learn also to convert Firewire to USB Adapter.
If you looking for what is a Wifi and how to use it, then this is the right place to find out What does Wifi Stand for, and here you will also learn that What work Wifi does.
If your PS4 Lan Cable not Connected then this is the right place to find out how to connect PS4 lan cable and here after read this article You can solve this problem "PS4 lan cable internet connection failed".
If you looking for Find Boot Menu Key then this is the right place to find out How to get Boot Menu key in Windows Operating System and here you get all types Laptop and Desktop Computer Boot menu key.
If you want to know that what is HZ of your monitor then this is the right place to find out that How you can check the HZ (Refresh Rate)of your Monitor.
If you want to know that Do you Need a Sound Card then this is the right place to find out Does your Computer Needs a Sound Card, and here you get the Answer to your Question that "Do I need a Sound Card".