A 2's-complement adder-subtracter can add or subtract binary numbers. Sign-magnitude numbers represent _____ decimal numbers, and 2's complements stand for _____ decimal numbers.

Conversion of decimal number 61₁₀ to it's binary number equivalent is

A. 110011₂

B. 11001110₂

C. 111101₂

D. 11111₂

E. None of the above

An OR gate can be imagined as

A. switches connected in series

B. switches connected in parallel

C. MOS transistors connected in series

D. All of the above

E. None of the above

Address 200H contains the byte 3FH. What is the decimal equivalent of 3FH

A. 63

B. 32

C. 16

D. 38

E. None of the above

Conversion of an octal number 112₈ to hexadecimal number is

A. 4A₁₆

B. 5A₁₆

C. 15₁₆

D. 20₁₆

E. None of the above