Cpe 380 Final Exam Questions And All Correct Answers.

What attributes are typical of a high end PC built in 2019? - Answer There is a GPU that does parallel computation. You might have a hard disk, but might have an SSD also or instead. In computers, most aspects of system performance are improving exponentially overtime. What good things are happening over time? - Answer The access time for main memory is decreasing. The number of transistors that can fit on a chip is increasing. The power consumed per transistor in a processor is decreasing. The amount of work a computer can do in one second increases faster than the speed at which transistors can switch. What does power consumption have to do with the fact that most processor chips now contain multiple cores? - Answer Multiple cores in processor chips mean that we will have more power consumed. What is true about ISAs? - Answer The ISA specifies is there is a multiply instruction. The ISA specifies the exact bit pattern that is used to encode each instruction. What is true about performance metrics? - Answer FLOPS refers to floating point operations per second. A high availability system can fail, but the expected time to repair should be short. Speed up is computed as original execution time divided by improved execution time. Many processors now have performance monitoring registers, such as a tick counter that can be read to find out how many clock cycles have elapsed. Amdahl's law - Answer (I/p+send+o/p)/send SRAM - Answer D-flip flips, more transistors, takes a lot more power, noise immunity DRAM - Answer Wimpy amount of charge, less transistors, not good for radiation. For 8 bits. What is the range of values you can represent using two's complement? - Answer -128 -> 127