74) A computer with a 32-bit word size uses 2's complement to represent numbers. The range of integers that can be represented by this computer is

75) A decimal number has 25 digits. The number of bits needed for its equivalent binary representation is, approximately

76) Decimal number 5 in level parity self correcting code is

77) The decimal number 80 can be represented in BCD code as

78) How many fractional digits 2-48 will have?