(F) this is computer artitecture class. thanks

i.The reason why we prefer 2's complement over 1's complement is that?

ii.A CPU chip typically has storage in two forms inside it. These are?

iii.The one's complement of 1101 in a 4-bit system is?

iv. In a 2's complement system using 5 bits, the binary code for -7 is?

v. In a 4-bit 2's complement system, the largest positive decimal number with a binary code is?