CS 160: INTRODUCTION TO COMPUTER SCIENCE QUESTIONS AND CORRECT ANSWERS

CS 160: INTRODUCTION TO

COMPUTER SCIENCE QUESTIONS

AND CORRECT ANSWERS



Which of the following best describes the OR operation? - CORRECT
ANSWER-if either input is TRUE OR both inputs are TRUE then the result
is TRUE, otherwise the result is FALSE




Which of the following bit patterns represents the value -9 in two's

complement notation? - CORRECT ANSWER-11110111

http://www.exploringbinary.com/twos-complement-converter/




Factors which affect the performance of magnetic disk storage systems
include - CORRECT ANSWER-The time required to move the read/write

heads from one track to another

,The time required for data to rotate around to the read/write head




The data transfer rate




Which of the following bit patterns represents the value 9 in two's

complement notation? - CORRECT ANSWER-00001001

http://www.exploringbinary.com/twos-complement-converter/




Which of the following bit patterns cannot be expressed in hexadecimal

notation? - CORRECT ANSWER-0FDG 110011

http://www.binaryhexconverter.com/hex-to-decimal-converter




http://www.exploringbinary.com/twos-complement-converter/




Which of the following bit patterns (represented in hexadecimal notation)
represents a positive number in 8-bit two's complement notation? -

,CORRECT ANSWER-http://www.binaryhexconverter.com/hex-to-decimal-

converter




http://www.exploringbinary.com/twos-complement-converter/




Which of the following representations in two's complement notation

represents the largest value? - CORRECT ANSWER-00000010

http://www.exploringbinary.com/twos-complement-converter/




Assuming that each of the following bit patterns originally had even parity,

which one contains an error? - CORRECT ANSWER-010011000




Which of the following data storage systems provides the most efficient

random access to individual data items? - CORRECT ANSWER-Main
memory

, Which of the following is the binary representation of 6 5/8? - CORRECT

ANSWER-110.101

http://www.exploringbinary.com/twos-complement-converter/

convert the fraction to decimal and then add on to the number.




Which of the following mass storage systems is preferred because it has

the fewest moving parts? - CORRECT ANSWER-Flash drives




Which of the following representations in two's complement notation

represents the smallest value? - CORRECT ANSWER-11110000

http://www.exploringbinary.com/twos-complement-converter/




What is the largest value that can be stored in 32 bits using two's

complement notaton? - CORRECT ANSWER-4,294,967,295




What is the largest value that can be stored in 16 bits using two's

complement? - CORRECT ANSWER-2,147,483,647