1.PS2=Connection for your mouse and keyboard.
2.USB port=Devices and hardware connections in the port
3.FDE= Floppy disk drive connection
4.CPU=The speed and type of proccesor your computer will be, such as Pentium, Athlon, Celeron,Duron but not all proccesors fit the same motherboard.
5.Power supply connection for your main power supply.
6.Serial ID=Connections for printers monitors or any other connections using Serial ID.
8.HDE-Hard Drive slots for your cd-drive, dvd drive and your main hard drive for storing your data and any other files will be on the hard drive.
9.AGP=Video card graphics slot for great video quality.
10.PCI slots= All five slots are the same these slots will be for your sound cards, modem cards, ethernet cards, flash cards or any other cards that with stand pci slots.
11.BIO=This is where your programs will run from after you install the Windows operating system such as windows XP, windows ME, windows 2000.
12.HDE2=Extra hard drive space for more hard drives and cd drives.