home work

3.8 Practice Set 25 a a 32 c. 128 1. How a negative integer is represented using two's complement format? 2. How is a real number stored in floating point representation? 3. Represent the number (24.076), in floating point binary representation. Assume the number is sits long using bit for the sign, 8 bits for the exponent, and 23 bits for the mantissa. 4. What is run-length encoding and Huffman encoding? 5. What is the data model of Bigtable? 6. Two bytes consists of bits. b. 8 c. 16 d. 32 7. In a set of 128 symbols, each symbol requires a bit pattern length of bits. b. 6 c. 7 d. 8 8. How many symbols can be represented by a bit pattern with eight bits? b. 64 d. 256 9. If the leftmost bit in number representation is 0, then the decimal number is positive. a. two's complement b. floating point c. excess system d. both a and be 10. For a fraction part, its exponential value can be stored by which method of number presentation? a. Unsigned integer b. Two's complement c. Excess system d. None of the above 11. When using excess representation, we the bias number to the number to be mverted a. add b. subtract e multiply d. divide LOOD 12. defines the precision of the fractional part of a number stored in a computer. Exponent b. Mantissa d. None of the above 13. A string of fifty Is is replaced by two markers, a 1, and the number 50. This is a. Run-length encoding 6. Sign b. Morse coding