Give the codewords of 4-bit binary natural number (BNN) and 4-bit two’s complement fixed-point number codes that represent the closest value to the decimal number 0.7. Specify the number of fractional bits and the error for each code.

Perform the following decimal additions in the 8421 code. (b) 679.6 + 536.8 (a) 25 + 13

Determine the number of bits in a byte.

Convert the decimal number  -19.625 to a floating-point number expressed in the 14-bit simple model given in your text (1 bit for the sign, 5 bits for exponent using excess-15 notation, and 8 bit mantissa with no implied bit).          Question 16 Convert the following decimal  Real number to fixed point binary: 19.62510 Assume 8 bits for the whole part and  8 bits for the fraction