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If you are not doing that much with your desktop a huge power supply is not needed, however for people who use their computer for more than basic things, you will simply need a Motherboard input a Cdrom power cable and a Hard drive cable and you will be fine.
Older motherboards often have a VGA port which allow monitors with a VGA cable to connect without the need of a graphics card.
Your PC has a motherboard that you can connect your memory card to. If it is a desktop, open the side of the box and the motherboard is where everything is connected to.
No, just connect the cable to the cable modem and then connect the modem to the computer.
no, you need to take the cable out of the box first, plug it in, and connect.
You will need a mini usb cable
You would need a cable modem when you want to connect to a cable internet service.
You need to connect the PS3 to the internet. How does the computer connect to the internet. That's the location for the PS3 to connect also. You may need to purchase a router along with an ethernet cable.
A VGA Cable.
A crossover cable.
To connect the PS3 to a HDTV you need an HDMI cable if your HDTV has an HDMI connection, if it doesn't you need a PS3 component cable.
The ethernet cable is used to connect your console to the internet (wired). You need this to actually get a network connect on the Xbox 360.