a.Main board: GA-G31M-ES2Cb.CPU: INTEL Celeron 3.06Gc.HD: 160G,320G for optiond.Power: 250We.RAM: 512M ,1G ,2 G for option2.LCD monitor: 15 ,17 ,19 for option 3.Touch screen: 15 ,17 ,19 for option4.Metal Keyboard: encrypt or not (16 ,15 or more count of the keyboard)5.Printer: thermal printer...