Magnetic disk is a nonvolatile memory because it retains data even in the absence of power source and it is used to store programs between runs Select one: a. False b. True If the performance of computer X is greater than the performance of computer Y, we can write: Select one: a. Execution time of computer Y > Execution time of X b. Execution time of computer X=3"(Execution time of Y) c. Execution time of computer X=1/(Execution time of Y) d. Execution time of computer X > Execution time of Y A compiler designer is trying to decide between two code sequences for a particular computer. The hardware designers have supplied the following facts: CPI for R-type instruction is 1, CPI for I-type instruction is 2, and CPI for J-type instruction is 3. The two sequences have the following instruction counts: Code sequence 1: R-type (2), I-type (1), J-type (2) Code sequence 2: R-type (4), I-type (1), J-type (1) Which code sequence is faster? Select one: a. code sequence 2 b. code sequence 1 Suppose a program runs in 100 seconds on a computer, with multiply operations responsible for 80 seconds of this time. How much do I have to improve the speed of multiplication if I want my program to run five times faster? (Use Amdahl's law) Select one: a. 5% b. 50% c. 10% O d. Impossible Magnetic tape is a sequential access memory Select one: a. False b. True The CPU execution timse can be expressed as Select one: a. CPU execution time for a program = (CPU clock cycle for a program)/(Clock cycle time) b. CPU execution time for a program = (CPU clock cycle for a program)*(Clock cycle time) C. CPU execution time for a program = (CPU clock cycle for a program)/(Clock rate) d. CPU execution time for a program = (CPU clock cycle for a program)"1/(Clock cycle time) An integrated circuit (IC) combined dozens to hundreds of transistors into a single chip Select one: O a. True b. False A symbolic representation of machine language is called Select one: O a. C Language b. High-Level Language O c. Machine Language d. Assembly language Embedded computers are the largest class of computers and span the widest range of applications and performance Select one: a. False b. True