Suppose we know that an application that uses both personal mobile devices and the Cloud is limited by network performance. For the following changes, state whether only the throughput improves, both response time and throughput improve, or neither improves.• An extra network channel is added between the PMD and the Cloud, increasing the total network throughput and reducing the delay to obtain network access (since there are now two channels).• The networking software is improved, thereby reducing the network communication delay, but not increasing throughput.• More memory is added to the computer.2. Computer C’s performance is 4 times as fast as the performance of computer B, which runs a given application in 28 seconds. How long will computer C take to run that application? ( show your works)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 each instruction classA B C DCPI 1 2 4 3For a particular high level language statement, the compiler writer is considering two code sequences that require the following instruction counts. Which code sequence executes the most instructions? Which will be faster? What is the CPI for each sequence? ( show your works)Instruction counts for each instruction classCode sequenceA B C D1. 3 2 1 22 . 2 1 1 4