Question

21. What is AA BA in 8-bit unsigned representation? [all numbers are given in hex] a. Overflow b. 10 1A C. d. A1 22. What is the 8-bit 2's complement representation of a number which is represented as 811s in 8-bit sign- magnitude integer representation? а. FF16 b. 1816 1116 C. d. Cannot be determined 23. What is 3B16 AB16 in 8-bit sign-magnitude representation? а. DB:6 b. 1016 2B16 C. d. Cannot be determined 24. What is 1100 - 0001 in 4-bit 2's compliment representation? a. 11011 -overflow b. 1011 5 1100 -4 C. d. 1101 -3 25. Overflow will occur when adding two in 2's compliment, if the signs of the operands are different a. b. there is a carry-out from the MSBS the signs of the operands are same, and there is a carry-out from the MSBS c. d. the signs of the operands are same, but the sign of the result is different

Answer 1

BA AA number. igned gbit are A A and BA uns always negatin the Value AA-BA Since AA< BA, hit it actually apable to tore uasigned numbers ovenfono i's resutt AA-BA option-a Correct omplem ent repreention Find 8-bit &'s Sign magnitu 7 bits 1191 1 0001 16 Magni tuds ngative) 1o it s 000 000 1 in & bit tlmat s Comploment pofam get 10 -1 's Complament 1 1 ! 1 ! 1 IO 1 I ! 1 1 JI ] f f 2& bit 's cormplurn ent fmat 81 sin magnitude famat i's FF option-a

SB t ABIC 23. in &-bit $gmmaynitade upresentahibn 3 B 0011 101) I4248t 16432 59 Sign o it s positive) AB 10 11 10 10 -+ t8 32 こ-43 3 81 tAB C 59-43 16 Sign - magnitude orveat 00010000 C 1016 option- a4) 0001 11 D0 1 X0 1 0 1011 !1o6-00O I 25) Oventloco coill occr ohen igna o the oporands the guntUlt is two in 2's complement adding same but the an are は the option-d