i am going to bcit and have just finished their a+ program, the book the gave me covers exam codes 220-201 for hardware and 220-202 for operating systems. Now i am doing my os exam on monday, and i just looked on the comptia site and the exam codes are different, they are now for hardware 220-221 and 220-222, is their a difference? i mean my study source were codes 220-201 and 220-202, its the same **** aint it?