So I have a couple of starter questions:

1. What's your region?
2. What do you want your computer to do for you?
3. What's your current budget?

Ex: I want to play Elden Ring at max graphics settings, I need it able to run xyz program for work/school

I'll ask some follow up questions afterwards👍
Also I'd recommend using PcPartPicker to find comp parts, it's what I typically start with when finding parts for my customers

The motherboard is what's used to connect all the parts together, plus it provides you with usb and video connection options on what's called the "rear IO (input output) port"

So on the rear IO port it'll contain connection options such as:

• USB-A (most common but is cursed in that there is only 1 correct way to connect🫠🎲)
• USB-C (the best port, no need to worry about how to connect your stuff now🌻)
• HDMI/DisplayPort (ports to connect to your monitor but is typically secondary backups or if your CPU has what's callled an IGPU (Integrated Graphics Processing Unit/video renderer))
• Ethernet (direct internet connection for lowest latency and fastest speeds typically(wifi 7 is apparently good for upload/download but still has latency issues))
• Wifi antenna jacks/ports
• audio jacks
• PS2 (typically seen on older/cheaper boards for mice/peripherals

Higher end mobos will also have extra buttons on the rear IO to provide additional features such as BIOS/UEFI Flashback