Some computers are supplied with a "drivers" CD which includes the drivers for the devices on the motherboard - Sound, Graphics, Modem, Network Adapter etc. It appears that your Network Adapter (ethernet controller) and another on-board device don't have their drivers installed. Do you have such a CD?
If not, double click the "ethernet controller" in Device Manger to open its Properties sheet, select the Drivers tab and click the button to Update Drivers, follow the wizard and see if it will install automatically, accessing the internet for drivers if necessary.
If that's still unsuccessful, you may have to go to the motherboard manufacturer's website to obtain the necessary drivers.