Exam 2: Data Representation

What value is represented by each of the following patterns in excess notation? A. 10000 ____ B. 0110 ____ C. 1011 ____

What is frequency-dependent encoding?

Which of the following systems is least efficient when encoding numeric values?

Which of the following Boolean operations produces the output 1 for the fewest number of input patterns?

How many bits are needed to represent 1024 different bit patterns? ____________

If the patterns 101.11 and 1.011 represent values in binary notation,what is the binary representation of their sum? ____________

Which of the following is a means of encoding music?

The following is an error-correcting code in which any two patterns differ by a Hamming distance of at least three. Symbol Representation A 000000 B 001111 C 010011 D 011100 E 100110 F 101001 G 110101 H 111010 Decode each of the following patterns 010011 ________ 101010 ________ 011000 ________ 101101 _______

Which of the following is a possible LZW compression of the message "xyz xyz xyz"?

What is the result of the following subtraction problem (using two's compliment notation)? 00001111 -10101010

When using two's complement notation,what bit pattern represents the negation of 01101010? ____________

The following is a message that was originally encoded so that each pattern had odd parity.Circle the patterns in which an error has definitely occurred. 101110101 111110000 100010010 000000000 111111111 010001000 100111101 ______________________________________

Among the Boolean operations AND,OR,EXCLUSIVE OR,and NOT,which is least like the others? Explain your answer.

Which of the following representations in two's complement notation represents the smallest value?

What is the largest value that can be represented in a floating-point system in which each value is encoded by a byte whose most significant bit is the sign bit,the next three bits represent the exponent field in excess notation,and the last four bits represent the mantissa? ____________

Translate each of the following binary representations into its equivalent base ten representation. A. 1100 __________ B. 10.011 __________ C. 0.01 __________ D. 10001 __________

What is the result of the following addition problem (using two's compliment notation)? 00001111 +10101010

Which of the following bit patterns (represented in hexadecimal notation)represents a positive number in two's complement notation?

Under what condition is each of the following data compression techniques most effective? a.Run-length encoding b.Relative encoding

Describe how a computer can produce an incorrect answer when performing numerical computations even though it has not malfunctioned.