91) The most commonly used character codes for transmission is

92) How many different number a 6-bit binary word can represent?

93) (r-1) ′s complement of the (r-1) ′s complement of an integer number is

94) The sign magnitude representative of decimal number -637 is

95) If negative numbers are stored in 2 ′s complement form, then range of numbers that can be stored in 8 bits, is